Предмет: Физика, автор: Jenua

в каком случае вес тела больше действующей на тело силы тяжести,а в каком случае-меньше?

Ответы

Автор ответа: darina999

0

так же третий случай,тело на опоре двигается с ускорением, вертикально вверх. тогда по второну закону Ньюттона, сила равн= ma=N+mg
oy^ ma=N-mg
по третьему закону Ньютона
F=N=P
P=m(a+g)
вывод :вес тела увеличивается.

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