Предмет: Физика, автор: sofiaUvU

потужність двигуна підйомної машини 4 квт який вантаж вона може рівномірно підняти навичоту 15м за 2 хв​

Ответы

Автор ответа: lvv9136
0

Ответ:

3200 кг

Объяснение:

P=4 кBт;

h=15 м;

t=2 хв​=120 c;

m    ?        m=P*t/(g*h)=4000*120/(10*15)=3200 кг

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