Предмет: Физика, автор: c0ffee

Скорость машины 54 км.ч, скорость грузовика 108 км.ч
масса машины 1000 кг. какова масса грузовика если импульс в 1.5 больше машины?

Ответы

Автор ответа: anadrab

1

54км/ч=15м/с, 108км/ч=30м/с
p=mv
p1 = m1*v1; p2 = m2*v2; p2 = 1,5p1
30*m2 = 1,5*15*1000
m2 = 22500:30=750 кг

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