Предмет: Физика, автор: turebekov123

Подъемный кран поднимая груз массой 3 т, выполнил работу 170 кДж. На какую высоту был поднят при этом груз

Ответы

Автор ответа: Аноним

Потенциальная энергия:

E = m * g * h

m=3т = 3000 кг
A=170 кДж = 170 000 Дж

Но А = Е, тогда :
h = A/(m*g) = 170 000 /(3000 * 10) ≈ 5,7 м

Ответ: h = 5,7 м

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