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Консультация № 196112
14.08.2019, 01:19
0.00 руб.
1
1
1
Уважаемые эксперты! Пожалуйста, ответьте на вопрос:
Определите ускорения a1 и a2 грузов массой m1 и m2, связанных невесомой и нерастяжимой нитью (см. рис.). Массой блоков и трением пренебречь, m1 > m2.
Определите ускорения a1 и a2 грузов массой m1 и m2, связанных невесомой и нерастяжимой нитью (см. рис.). Массой блоков и трением пренебречь, m1 > m2.
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Обсуждение
17.08.2019, 14:00
общий
это ответ
Здравствуйте, dar777!
Расчётная схема к задаче находится в прикреплённом файле. Поскольку
постольку первый груз движется вниз, а второй -- вверх. Если первый груз опустится вниз на величину 
то второй груз поднимется вверх на величину 
Но перемещения грузов прямо пропорциональны их ускорениям, поэтому модули ускорении грузов связаны соотношением 
Согласно второму закону Ньютона,
Решая эту систему уравнений, получим
Вектор
направлен вниз, вектор 
направлен вверх.
Расчётная схема к задаче находится в прикреплённом файле. Поскольку
постольку первый груз движется вниз, а второй -- вверх. Если первый груз опустится вниз на величину то второй груз поднимется вверх на величину Но перемещения грузов прямо пропорциональны их ускорениям, поэтому модули ускорении грузов связаны соотношением Согласно второму закону Ньютона,Решая эту систему уравнений, получим
Вектор
направлен вниз, вектор направлен вверх.
Прикрепленные файлы:
5
Это самое лучшее решение!
Об авторе:
Facta loquuntur.
Facta loquuntur.
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