Страница 28 - гдз по физике 10-11 класс задачник Гельфгат, Генденштейн

Физика, 10-11 класс Задачник, авторы: Гельфгат Илья Маркович, Генденштейн Лев Элевич, Кирик Леонид Анатольевич, издательство Илекса, Москва, 2008, красного цвета

Авторы: Гельфгат И. М., Генденштейн Л. Э., Кирик Л. А.

Тип: Задачник

Издательство: Илекса

Год издания: 2008 - 2026

Уровень обучения: профильный

Цвет обложки: красный лупа, парень едет на велосипеде

ISBN: 978-5-89237-252-7

Cтраница 28

App\Models\BookPage {#1003 // resources/views/models/book_page/default.blade.php
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    }
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                2 => App\Models\Task {#4151
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                  #attributes: array:24 [
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                3 => App\Models\Task {#4163
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                0 => App\Models\Branch {#1229
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                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1230 …2}
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                1 => App\Models\Branch {#1233
                  #connection: "mysql"
                  #table: "branches"
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                }
                2 => App\Models\Branch {#1237
                  #connection: "mysql"
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                3 => App\Models\Branch {#1279
                  #connection: "mysql"
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            "content" => Illuminate\Database\Eloquent\Collection {#1174
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                    "edition" => Illuminate\Database\Eloquent\Collection {#1205 …2}
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                    "text" => "<p><strong>3.6.</strong> Из точки B свободно падает тело. Одновременно из точки A под углом $\alpha$ к горизонту бросают другое тело так, чтобы оба тела столкнулись в воздухе (см. рисунок). Докажите, что угол $\alpha$ не зависит от начальной скорости $v_0$ тела, брошенного из точки A, и определите этот угол, если $\frac{H}{L} = \sqrt{3}$.</p><p>&#9745; 60°.</p><p><strong><em>Решение.</em></strong> Систему отсчета свяжем с телом, падающим из точки B. В этом случае скорость тела, брошенного из точки A, постоянна. Очевидно, тела встретятся, если вектор скорости тела направлен в точку B, т. е. $\text{tg} \alpha = \frac{H}{L}$. Если $H = L \cdot \sqrt{3}$, то $\text{tg} \alpha = \sqrt{3}$, а $\alpha = 60^{\circ}$.</p>"
                    "img" => array:2 [ …2]
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                1 => App\Models\Element {#1204
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        1 => App\Models\Task {#1208
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                }
                1 => App\Models\Element {#1187
                  #connection: "mysql"
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                }
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    "created_at" => "2026-04-10 00:54:11"
    "updated_at" => null
    "field_page_start" => "28"
    "field_url" => "/10-klass/fizika/gelfgat-zadachnik/page-28"
    "field_display_title" => "28"
    "field_folder" => "1"
    "field_image_name" => "28"
    "field_branch_parent" => Illuminate\Database\Eloquent\Collection {#1008}
    "field_weight" => "0"
    "field_book_parent" => Illuminate\Database\Eloquent\Collection {#1040}
    "field_metatags_title" => null
    "field_metatags_description" => null
    "field_h1" => null
    "field_description_top" => null
    "field_description_bottom" => null
    "edition_groups" => Illuminate\Database\Eloquent\Collection {#1038}
    "content" => Illuminate\Database\Eloquent\Collection {#1049}
    "next" => array:2 [
      "refs" => "1340990"
      "type" => "book_page"
    ]
    "previous" => array:2 [
      "refs" => "1340988"
      "type" => "book_page"
    ]
    "tasks" => Illuminate\Database\Eloquent\Collection {#1042}
  ]
  #changes: []
  #casts: []
  #classCastCache: []
  #attributeCastCache: []
  #dateFormat: null
  #appends: []
  #dispatchesEvents: []
  #observables: []
  #relations: []
  #touches: []
  +timestamps: true
  +usesUniqueIds: false
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [
    0 => "*"
  ]
}
Физика, 10-11 класс Задачник, авторы: Гельфгат Илья Маркович, Генденштейн Лев Элевич, Кирик Леонид Анатольевич, издательство Илекса, Москва, 2008, красного цвета, страница 28
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