Задача №13.16

Условие

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.

Решение




Предыдущая задача №15
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.
Следующая задача №17
Угол наклона полного ускорения точки обода махового колеса к радиусу равен 60°. Касательное ускорение ее в данный момент wτ=10*sqrt(3) м/с2. Найти нормальное ускорение точки, отстоящей от оси вращения на расстоянии r=0,5 м. Радиус махового колеса R=1 м.
Источник: Решебник Мещерского 12 класс
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1.1
1.2
1.3
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2.1
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24.1
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28.1
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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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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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56.3
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56.9
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