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Консультация № 196503
29.09.2019, 16:40
0.00 руб.
1
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0
Здравствуйте! У меня возникли сложности с таким вопросом:
Груз массой m = 4500 кг представляет собой кабину лифта (рис.), подвешенную на упругом стальном тросе и движущегося вниз с постоянной скоростью v0 = 1 м/с. Длина троса l = 18 м, площадь поперечного сечения троса S = 0,0016 м2, модуль упругости материала троса Е = 1011 Н/м2. Весом троса пренебрегаем. Найти динамическое натяжение троса δд, если верхний конец А троса внезапно остановлен.
Груз массой m = 4500 кг представляет собой кабину лифта (рис.), подвешенную на упругом стальном тросе и движущегося вниз с постоянной скоростью v0 = 1 м/с. Длина троса l = 18 м, площадь поперечного сечения троса S = 0,0016 м2, модуль упругости материала троса Е = 1011 Н/м2. Весом троса пренебрегаем. Найти динамическое натяжение троса δд, если верхний конец А троса внезапно остановлен.
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