Предмет: Физика, автор: LelekandBolek

Вагон массой 10т двигался со скоростью 2м/с, столкнулся с неподвижной платформой массой 5т Найти Q  после удара

Ответы

Автор ответа: musalimova1998
0
Закон созранения импульса:m1v1+m2v2=v(m1+m2)v2=0(платформа не двигалась)v=m1v1/(m1+m2)Не забываем перевести тонны в килограммы!v=10000*1/(10000+5000)=0,7 м/c
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