Предмет: Физика, автор: dinpatmagshap

Мощность двигателя подъемной машины равна 4кВт. Груз какой массы она может поднять на высоту 15 м в течении 2 мин?

Ответы

Автор ответа: o2784913
0
P=A/t=mgh/t
m=Pt/gh
m=4000*120/10*15=3200 кг

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