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Консультация № 196442
23.09.2019, 17:43
0.00 руб.
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Здравствуйте! Прошу помощи в следующем вопросе:
На железнодорожной тележке массой M жёстко закреплён вертикальный щит, повернутый на угол a
от перпендикулярного рельсам положения . В щит бросают мешок с песком массой m, горизонтальная составляющая начальной скорости которого равна v0 и перпендикулярна рельсам. Найдите скорость v
тележки в после того, как мешок, ударившись о щит, сполз по нему вниз и упал на тележку. Силу трения при скольжении мешка по щиту и тележке и силу сопротивления движению тележки считайте
пренебрежимо малыми. До удара тележка была неподвижна.
На железнодорожной тележке массой M жёстко закреплён вертикальный щит, повернутый на угол a
от перпендикулярного рельсам положения . В щит бросают мешок с песком массой m, горизонтальная составляющая начальной скорости которого равна v0 и перпендикулярна рельсам. Найдите скорость v
тележки в после того, как мешок, ударившись о щит, сполз по нему вниз и упал на тележку. Силу трения при скольжении мешка по щиту и тележке и силу сопротивления движению тележки считайте
пренебрежимо малыми. До удара тележка была неподвижна.
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