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Консультация № 198133
03.04.2020, 16:40
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Здравствуйте, уважаемые эксперты! Прошу помощи в следующем вопросе:
Шкив радиуса R может вращаться без трения вокруг горизонтальной закрепленной оси симметрии, проходящей через его центр 0. К нити, намотанной на шкив, прикреплен груз массы m, который падает под действием силы тяжести. Момент инерции шкива равен I=3mr^2. Запишите для шкива уравнение динамики вращательного движения относительно оси вращения 0, а для груза – уравнение динамики поступательного движения и выразите с их помощью силу натяжения нити через массу m и ускорение свободного падения g.
Шкив радиуса R может вращаться без трения вокруг горизонтальной закрепленной оси симметрии, проходящей через его центр 0. К нити, намотанной на шкив, прикреплен груз массы m, который падает под действием силы тяжести. Момент инерции шкива равен I=3mr^2. Запишите для шкива уравнение динамики вращательного движения относительно оси вращения 0, а для груза – уравнение динамики поступательного движения и выразите с их помощью силу натяжения нити через массу m и ускорение свободного падения g.
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