Номер 8, страница 441 - гдз по физике 10 класс учебник Касьянов

Физика, 10 класс Учебник, автор: Касьянов Валерий Алексеевич, издательство Просвещение, Москва, 2021, белого цвета

Авторы: Касьянов В. А.

Тип: Учебник

Издательство: Просвещение

Год издания: 2021 - 2026

Уровень обучения: углублённый

Цвет обложки: белый самолет и молнии изображены

ISBN: 978-5-09-103621-3

Лабораторные работы. 2. Изучение движения тела, брошенного горизонтально. Задание 2 - номер 8, страница 441.

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                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "углублённый"
                            "field_cases" => array:6 [
                              "field_accusative_case" => "углубленный"
                              "field_creative_case" => "углубленным"
                              "field_dative_case" => "углубленному"
                              "field_genitive_case" => "углубленного"
                              "field_nominative_case" => "углубленный"
                              "field_prepositional_case" => "углубленном"
                            ]
                            "field_translit" => "uglublennyy"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1068
                      #items: array:1 [
                        0 => App\Models\Term {#1069
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:10 [
                            "id" => 6706
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "ФГОС (старый)"
                            "field_cases" => array:6 [
                              "field_accusative_case" => null
                              "field_creative_case" => null
                              "field_dative_case" => null
                              "field_genitive_case" => null
                              "field_nominative_case" => null
                              "field_prepositional_case" => null
                            ]
                            "field_color" => null
                            "field_end_year" => "2022"
                            "field_start_year" => "2019"
                            "field_translit" => "fgos-old"
                            "field_type" => null
                          ]
                          #original: array:10 [
                            "id" => 6706
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "ФГОС (старый)"
                            "field_cases" => array:6 [
                              "field_accusative_case" => null
                              "field_creative_case" => null
                              "field_dative_case" => null
                              "field_genitive_case" => null
                              "field_nominative_case" => null
                              "field_prepositional_case" => null
                            ]
                            "field_color" => null
                            "field_end_year" => "2022"
                            "field_start_year" => "2019"
                            "field_translit" => "fgos-old"
                            "field_type" => null
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_publication_number" => "11"
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1070
                      #items: array:1 [
                        0 => App\Models\Term {#1071
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 33
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "стереотипное"
                            "field_cases" => array:6 [
                              "field_accusative_case" => null
                              "field_creative_case" => null
                              "field_dative_case" => null
                              "field_genitive_case" => null
                              "field_nominative_case" => null
                              "field_prepositional_case" => null
                            ]
                            "field_translit" => "stereotipnoe"
                          ]
                          #original: array:6 [
                            "id" => 33
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "стереотипное"
                            "field_cases" => array:6 [
                              "field_accusative_case" => null
                              "field_creative_case" => null
                              "field_dative_case" => null
                              "field_genitive_case" => null
                              "field_nominative_case" => null
                              "field_prepositional_case" => null
                            ]
                            "field_translit" => "stereotipnoe"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1072
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => "самолет и молнии изображены"
                    "field_publication_year" => "2021"
                    "field_publication_year_until" => null
                    "field_part" => ""
                    "field_part_writing" => ""
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебное издание"
                    "field_allowed" => null
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "984"
                    "field_priority" => null
                    "field_default_folder" => "/fizika_10/kasyanov-u/"
                    "field_isbn" => "978-5-09-103621-3"
                    "field_cover" => array:1 [
                      0 => "/media/fizika_10/kasyanov-u/covers/cover1.webp?ts=1757588862"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/fizika_10/kasyanov-u/covers/cover1.webp?ts=1757588862"
                        "alt" => ""
                        "width" => "1604"
                        "height" => "2397"
                      ]
                    ]
                    "field_popular_book" => "0"
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1073
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1074
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1075
                      #items: []
                      #escapeWhenCastingToString: false
                    }
                    "field_url" => "/10-klass/fizika/kasyanov-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1076
                      #items: array:1 [
                        0 => App\Models\Term {#1077
                          #connection: "mysql"
                          #table: "terms"
                          #primaryKey: "id"
                          #keyType: "int"
                          +incrementing: false
                          #with: []
                          #withCount: []
                          +preventsLazyLoading: false
                          #perPage: 15
                          +exists: true
                          +wasRecentlyCreated: false
                          #escapeWhenCastingToString: false
                          #attributes: array:6 [
                            "id" => 45
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "белый"
                            "field_cases" => array:6 [
                              "field_accusative_case" => "белый"
                              "field_creative_case" => "белым"
                              "field_dative_case" => "белому"
                              "field_genitive_case" => "белого"
                              "field_nominative_case" => "белый"
                              "field_prepositional_case" => "белом"
                            ]
                            "field_translit" => "belyy"
                          ]
                          #original: array:6 [
                            "id" => 45
                            "created_at" => "2026-04-10 13:58:26"
                            "updated_at" => null
                            "name" => "белый"
                            "field_cases" => array:6 [
                              "field_accusative_case" => "белый"
                              "field_creative_case" => "белым"
                              "field_dative_case" => "белому"
                              "field_genitive_case" => "белого"
                              "field_nominative_case" => "белый"
                              "field_prepositional_case" => "белом"
                            ]
                            "field_translit" => "belyy"
                          ]
                          #changes: []
                          #casts: []
                          #classCastCache: []
                          #attributeCastCache: []
                          #dateFormat: null
                          #appends: []
                          #dispatchesEvents: []
                          #observables: []
                          #relations: []
                          #touches: []
                          +timestamps: true
                          +usesUniqueIds: false
                          #hidden: []
                          #visible: []
                          #fillable: []
                          #guarded: array:1 [
                            0 => "*"
                          ]
                        }
                      ]
                      #escapeWhenCastingToString: false
                    }
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [
                      "class" => 381
                      "subject" => 556
                      "class_subject" => 494
                    ]
                  ]
                  #original: array:50 [
                    "id" => 7000
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_tree_default_status" => "tasks"
                    "field_pages_status" => null
                    "field_subject" => Illuminate\Database\Eloquent\Collection {#1050}
                    "field_class" => Illuminate\Database\Eloquent\Collection {#1051}
                    "field_publisher" => Illuminate\Database\Eloquent\Collection {#1053}
                    "field_author" => Illuminate\Database\Eloquent\Collection {#1055}
                    "field_author_foreign" => Illuminate\Database\Eloquent\Collection {#1057}
                    "field_book_type" => Illuminate\Database\Eloquent\Collection {#1058}
                    "field_country" => Illuminate\Database\Eloquent\Collection {#1060}
                    "field_city" => Illuminate\Database\Eloquent\Collection {#1062}
                    "field_series" => Illuminate\Database\Eloquent\Collection {#1064}
                    "field_umk" => Illuminate\Database\Eloquent\Collection {#1065}
                    "field_level_of_education" => Illuminate\Database\Eloquent\Collection {#1066}
                    "field_standart_of_education" => Illuminate\Database\Eloquent\Collection {#1068}
                    "field_publication_number" => "11"
                    "field_publication_type" => Illuminate\Database\Eloquent\Collection {#1070}
                    "field_under_the_edition" => Illuminate\Database\Eloquent\Collection {#1072}
                    "field_under_the_edition_degree" => null
                    "field_cover_description" => "самолет и молнии изображены"
                    "field_publication_year" => "2021"
                    "field_publication_year_until" => null
                    "field_part" => ""
                    "field_part_writing" => ""
                    "field_second_foreign_language" => null
                    "field_for_whom" => "Учебное издание"
                    "field_allowed" => null
                    "field_reserve_field" => null
                    "field_link_to_source" => null
                    "field_tasks_count" => "984"
                    "field_priority" => null
                    "field_default_folder" => "/fizika_10/kasyanov-u/"
                    "field_isbn" => "978-5-09-103621-3"
                    "field_cover" => array:1 [
                      0 => "/media/fizika_10/kasyanov-u/covers/cover1.webp?ts=1757588862"
                    ]
                    "field_cover_alts" => array:1 [
                      0 => ""
                    ]
                    "field_covers" => array:1 [
                      0 => array:4 [
                        "path" => "/media/fizika_10/kasyanov-u/covers/cover1.webp?ts=1757588862"
                        "alt" => ""
                        "width" => "1604"
                        "height" => "2397"
                      ]
                    ]
                    "field_popular_book" => "0"
                    "field_recommended_books" => Illuminate\Database\Eloquent\Collection {#1073}
                    "field_new_book" => Illuminate\Database\Eloquent\Collection {#1074}
                    "field_old_book" => Illuminate\Database\Eloquent\Collection {#1075}
                    "field_url" => "/10-klass/fizika/kasyanov-uchebnik"
                    "field_cover_color" => Illuminate\Database\Eloquent\Collection {#1076}
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "breadcrumbs" => array:3 [
                      "class" => 381
                      "subject" => 556
                      "class_subject" => 494
                    ]
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1078
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1389652
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Лабораторные работы"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1047}
            "field_page_start" => "426"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1080}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1078}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
      ]
      #escapeWhenCastingToString: false
    }
    "parent_branches" => Illuminate\Database\Eloquent\Collection {#1108
      #items: array:3 [
        0 => App\Models\Branch {#1118
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1389652
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Лабораторные работы"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1119
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "426"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1120
              #items: array:1 [
                0 => App\Models\Book {#1048}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1121
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1389652
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Лабораторные работы"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1119}
            "field_page_start" => "426"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1120}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1121}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Branch {#1122
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1389654
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "2. Изучение движения тела, брошенного горизонтально"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1123
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "438"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1124
              #items: array:1 [
                0 => App\Models\Book {#1048}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1125
              #items: array:1 [
                0 => App\Models\Branch {#1045}
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1389654
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "2. Изучение движения тела, брошенного горизонтально"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1123}
            "field_page_start" => "438"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1124}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1125}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Branch {#1126
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1389656
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Задание 2"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1127
              #items: []
              #escapeWhenCastingToString: false
            }
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            "text" => "<p><strong>8.</strong> Запишите значение дальности полёта с учётом абсолютной погрешности измерения:</p><p>$$l = l_{\text{cp}} \pm \Delta l.$$</p>"
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            "text" => "<p><strong>8.</strong> Запишите значение дальности полёта с учётом абсолютной погрешности измерения:</p><p>Чтобы записать значение дальности полёта с учётом абсолютной погрешности, необходимо иметь результаты нескольких измерений этой дальности. Формула для записи результата имеет вид:</p><p>$l = l_{ср} \pm \Delta l$</p><p>где:<br>$l_{ср}$ – среднее арифметическое значение измеренной дальности полёта,<br>$\Delta l$ – абсолютная погрешность измерения.</p><p>Поскольку в задании не приведены результаты измерений, для демонстрации метода решения приведём пример расчёта на гипотетических данных.</p><p><strong>Дано:</strong></p><p>Предположим, было проведено 5 измерений дальности полёта ($n=5$) с помощью измерительной ленты с ценой деления 1 см. Получены следующие результаты:<br>$l_1 = 85 \text{ см}$<br>$l_2 = 87 \text{ см}$<br>$l_3 = 84 \text{ см}$<br>$l_4 = 86 \text{ см}$<br>$l_5 = 85 \text{ см}$<br>Цена деления прибора: $c = 1 \text{ см}$.</p><p>$l_1 = 0.85 \text{ м}$<br>$l_2 = 0.87 \text{ м}$<br>$l_3 = 0.84 \text{ м}$<br>$l_4 = 0.86 \text{ м}$<br>$l_5 = 0.85 \text{ м}$<br>$c = 0.01 \text{ м}$.</p><p><strong>Найти:</strong></p><p>$l$ - значение дальности полёта с учётом абсолютной погрешности.</p><p><strong>Решение:</strong></p><p><strong>1.</strong> Найдём среднее значение дальности полёта ($l_{ср}$):</p><p>$l_{ср} = \frac{l_1 + l_2 + l_3 + l_4 + l_5}{n} = \frac{0.85 + 0.87 + 0.84 + 0.86 + 0.85}{5} = \frac{4.27}{5} = 0.854 \text{ м}$.</p><p><strong>2.</strong> Рассчитаем абсолютную погрешность $\Delta l$. Она складывается из случайной погрешности ($\Delta l_{сл}$), обусловленной разбросом результатов, и приборной погрешности ($\Delta l_{пр}$), связанной с точностью измерительного инструмента.</p><p>а) Случайную погрешность для небольшого числа измерений можно оценить как половину размаха (разницы между максимальным и минимальным значениями):</p><p>$l_{max} = 0.87 \text{ м}$<br>$l_{min} = 0.84 \text{ м}$<br>$\Delta l_{сл} = \frac{l_{max} - l_{min}}{2} = \frac{0.87 - 0.84}{2} = \frac{0.03}{2} = 0.015 \text{ м}$.</p><p>б) Приборная погрешность обычно принимается равной половине цены деления измерительного прибора. Цена деления $c = 0.01$ м, следовательно:</p><p>$\Delta l_{пр} = \frac{c}{2} = \frac{0.01}{2} = 0.005 \text{ м}$.</p><p>в) Полная абсолютная погрешность $\Delta l$ находится как сумма случайной и приборной погрешностей:</p><p>$\Delta l = \Delta l_{сл} + \Delta l_{пр} = 0.015 + 0.005 = 0.020 \text{ м}$.</p><p><strong>3.</strong> Округлим результаты в соответствии с правилами. Абсолютную погрешность $\Delta l$ принято округлять до одной значащей цифры. В нашем случае $\Delta l = 0.02$ м, что уже соответствует этому правилу.</p><p><strong>4.</strong> Среднее значение $l_{ср}$ округляется до того же десятичного разряда, что и погрешность. Погрешность $\Delta l$ определена до сотых долей метра, значит, и $l_{ср}$ нужно округлить до сотых.</p><p>$l_{ср} = 0.854 \text{ м} \approx 0.85 \text{ м}$.</p><p><strong>5.</strong> Запишем окончательный результат в виде $l = l_{ср} \pm \Delta l$.</p><p>$l = (0.85 \pm 0.02) \text{ м}$.</p><p>Это означает, что истинное значение дальности полёта с высокой вероятностью находится в интервале от $0.83$ м до $0.87$ м.</p><p><strong>Ответ:</strong> Поскольку данные для расчета отсутствуют в условии, окончательный ответ можно записать только в общем виде $l = l_{ср} \pm \Delta l$. На основе приведённого выше примера расчёта: $l = (0.85 \pm 0.02) \text{ м}$.</p>"
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            "text" => "<p><strong>8.</strong> Запишите значение дальности полёта с учётом абсолютной погрешности измерения:</p><p>Чтобы записать значение дальности полёта с учётом абсолютной погрешности, необходимо иметь результаты нескольких измерений этой дальности. Формула для записи результата имеет вид:</p><p>$l = l_{ср} \pm \Delta l$</p><p>где:<br>$l_{ср}$ – среднее арифметическое значение измеренной дальности полёта,<br>$\Delta l$ – абсолютная погрешность измерения.</p><p>Поскольку в задании не приведены результаты измерений, для демонстрации метода решения приведём пример расчёта на гипотетических данных.</p><p><strong>Дано:</strong></p><p>Предположим, было проведено 5 измерений дальности полёта ($n=5$) с помощью измерительной ленты с ценой деления 1 см. Получены следующие результаты:<br>$l_1 = 85 \text{ см}$<br>$l_2 = 87 \text{ см}$<br>$l_3 = 84 \text{ см}$<br>$l_4 = 86 \text{ см}$<br>$l_5 = 85 \text{ см}$<br>Цена деления прибора: $c = 1 \text{ см}$.</p><p>$l_1 = 0.85 \text{ м}$<br>$l_2 = 0.87 \text{ м}$<br>$l_3 = 0.84 \text{ м}$<br>$l_4 = 0.86 \text{ м}$<br>$l_5 = 0.85 \text{ м}$<br>$c = 0.01 \text{ м}$.</p><p><strong>Найти:</strong></p><p>$l$ - значение дальности полёта с учётом абсолютной погрешности.</p><p><strong>Решение:</strong></p><p><strong>1.</strong> Найдём среднее значение дальности полёта ($l_{ср}$):</p><p>$l_{ср} = \frac{l_1 + l_2 + l_3 + l_4 + l_5}{n} = \frac{0.85 + 0.87 + 0.84 + 0.86 + 0.85}{5} = \frac{4.27}{5} = 0.854 \text{ м}$.</p><p><strong>2.</strong> Рассчитаем абсолютную погрешность $\Delta l$. Она складывается из случайной погрешности ($\Delta l_{сл}$), обусловленной разбросом результатов, и приборной погрешности ($\Delta l_{пр}$), связанной с точностью измерительного инструмента.</p><p>а) Случайную погрешность для небольшого числа измерений можно оценить как половину размаха (разницы между максимальным и минимальным значениями):</p><p>$l_{max} = 0.87 \text{ м}$<br>$l_{min} = 0.84 \text{ м}$<br>$\Delta l_{сл} = \frac{l_{max} - l_{min}}{2} = \frac{0.87 - 0.84}{2} = \frac{0.03}{2} = 0.015 \text{ м}$.</p><p>б) Приборная погрешность обычно принимается равной половине цены деления измерительного прибора. Цена деления $c = 0.01$ м, следовательно:</p><p>$\Delta l_{пр} = \frac{c}{2} = \frac{0.01}{2} = 0.005 \text{ м}$.</p><p>в) Полная абсолютная погрешность $\Delta l$ находится как сумма случайной и приборной погрешностей:</p><p>$\Delta l = \Delta l_{сл} + \Delta l_{пр} = 0.015 + 0.005 = 0.020 \text{ м}$.</p><p><strong>3.</strong> Округлим результаты в соответствии с правилами. Абсолютную погрешность $\Delta l$ принято округлять до одной значащей цифры. В нашем случае $\Delta l = 0.02$ м, что уже соответствует этому правилу.</p><p><strong>4.</strong> Среднее значение $l_{ср}$ округляется до того же десятичного разряда, что и погрешность. Погрешность $\Delta l$ определена до сотых долей метра, значит, и $l_{ср}$ нужно округлить до сотых.</p><p>$l_{ср} = 0.854 \text{ м} \approx 0.85 \text{ м}$.</p><p><strong>5.</strong> Запишем окончательный результат в виде $l = l_{ср} \pm \Delta l$.</p><p>$l = (0.85 \pm 0.02) \text{ м}$.</p><p>Это означает, что истинное значение дальности полёта с высокой вероятностью находится в интервале от $0.83$ м до $0.87$ м.</p><p><strong>Ответ:</strong> Поскольку данные для расчета отсутствуют в условии, окончательный ответ можно записать только в общем виде $l = l_{ср} \pm \Delta l$. На основе приведённого выше примера расчёта: $l = (0.85 \pm 0.02) \text{ м}$.</p>"
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№8 (с. 441)
Условие. №8 (с. 441)
скриншот условия
Физика, 10 класс Учебник, автор: Касьянов Валерий Алексеевич, издательство Просвещение, Москва, 2021, белого цвета, страница 441, номер 8, Условие

8. Запишите значение дальности полёта с учётом абсолютной погрешности измерения:

$$l = l_{\text{cp}} \pm \Delta l.$$

Решение. №8 (с. 441)

8. Запишите значение дальности полёта с учётом абсолютной погрешности измерения:

Чтобы записать значение дальности полёта с учётом абсолютной погрешности, необходимо иметь результаты нескольких измерений этой дальности. Формула для записи результата имеет вид:

$l = l_{ср} \pm \Delta l$

где:
$l_{ср}$ – среднее арифметическое значение измеренной дальности полёта,
$\Delta l$ – абсолютная погрешность измерения.

Поскольку в задании не приведены результаты измерений, для демонстрации метода решения приведём пример расчёта на гипотетических данных.

Дано:

Предположим, было проведено 5 измерений дальности полёта ($n=5$) с помощью измерительной ленты с ценой деления 1 см. Получены следующие результаты:
$l_1 = 85 \text{ см}$
$l_2 = 87 \text{ см}$
$l_3 = 84 \text{ см}$
$l_4 = 86 \text{ см}$
$l_5 = 85 \text{ см}$
Цена деления прибора: $c = 1 \text{ см}$.

$l_1 = 0.85 \text{ м}$
$l_2 = 0.87 \text{ м}$
$l_3 = 0.84 \text{ м}$
$l_4 = 0.86 \text{ м}$
$l_5 = 0.85 \text{ м}$
$c = 0.01 \text{ м}$.

Найти:

$l$ - значение дальности полёта с учётом абсолютной погрешности.

Решение:

1. Найдём среднее значение дальности полёта ($l_{ср}$):

$l_{ср} = \frac{l_1 + l_2 + l_3 + l_4 + l_5}{n} = \frac{0.85 + 0.87 + 0.84 + 0.86 + 0.85}{5} = \frac{4.27}{5} = 0.854 \text{ м}$.

2. Рассчитаем абсолютную погрешность $\Delta l$. Она складывается из случайной погрешности ($\Delta l_{сл}$), обусловленной разбросом результатов, и приборной погрешности ($\Delta l_{пр}$), связанной с точностью измерительного инструмента.

а) Случайную погрешность для небольшого числа измерений можно оценить как половину размаха (разницы между максимальным и минимальным значениями):

$l_{max} = 0.87 \text{ м}$
$l_{min} = 0.84 \text{ м}$
$\Delta l_{сл} = \frac{l_{max} - l_{min}}{2} = \frac{0.87 - 0.84}{2} = \frac{0.03}{2} = 0.015 \text{ м}$.

б) Приборная погрешность обычно принимается равной половине цены деления измерительного прибора. Цена деления $c = 0.01$ м, следовательно:

$\Delta l_{пр} = \frac{c}{2} = \frac{0.01}{2} = 0.005 \text{ м}$.

в) Полная абсолютная погрешность $\Delta l$ находится как сумма случайной и приборной погрешностей:

$\Delta l = \Delta l_{сл} + \Delta l_{пр} = 0.015 + 0.005 = 0.020 \text{ м}$.

3. Округлим результаты в соответствии с правилами. Абсолютную погрешность $\Delta l$ принято округлять до одной значащей цифры. В нашем случае $\Delta l = 0.02$ м, что уже соответствует этому правилу.

4. Среднее значение $l_{ср}$ округляется до того же десятичного разряда, что и погрешность. Погрешность $\Delta l$ определена до сотых долей метра, значит, и $l_{ср}$ нужно округлить до сотых.

$l_{ср} = 0.854 \text{ м} \approx 0.85 \text{ м}$.

5. Запишем окончательный результат в виде $l = l_{ср} \pm \Delta l$.

$l = (0.85 \pm 0.02) \text{ м}$.

Это означает, что истинное значение дальности полёта с высокой вероятностью находится в интервале от $0.83$ м до $0.87$ м.

Ответ: Поскольку данные для расчета отсутствуют в условии, окончательный ответ можно записать только в общем виде $l = l_{ср} \pm \Delta l$. На основе приведённого выше примера расчёта: $l = (0.85 \pm 0.02) \text{ м}$.

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