ВХОД | РЕГИСТРАЦИЯ

Задача №13.15

Условие

Маховое колесо радиуса R=2 м вращается равноускоренно из состояния покоя; через t=10 с точки, лежащие на ободе, обладают линейной скоростью v=100 м/с. Найти скорость, нормальное и касательное ускорения точек обода колеса для момента t=15 с.

Решение





Предыдущая задача №14
Точка A шкива, лежащая на его ободе, движется со скоростью 50 см/с, а некоторая точка B, взятая на одном радиусе с точкой A, движется со скоростью 10 см/с; расстояние AB=20 см. Определить угловую скорость ω и диаметр шкива.
Следующая задача №16
Найти горизонтальную скорость v, которую нужно сообщить телу, находящемуся на экваторе, для того чтобы оно, двигаясь равномерно вокруг Земли по экватору в особых направляющих, имело ускорение свободного падения. Определить также время T, по истечении которого тело вернется в первоначальное положение. Радиус Земли R=637*106 см, а ускорение силы тяжести на экваторе g=978 см/с2.
Источник: Решебник Мещерского 12 класс
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1.1
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1.4
1.5
2.1
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3.1
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24.1
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28.1
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31.1
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32.1
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33.1
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38.1
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39.1
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43.1
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46.1
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47.1
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48.1
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49.1
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53.5
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54.1
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55.2
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