Предмет: Физика, автор: Аноним

1. При помощи подъемного крана подняли груз массой 2,4 т на высоту 20м. Какая работа при этом совершается?

Ответы

Автор ответа: SlavaCPSS

3

Дано:
m - 2,4т = 2400кг
h - 20м
A - ?
Решение:
A = mgh = 2400кг*10Н/кг*20м = 480.000Дж = 480 кДж
Ответ: совершается работа в 480 кДж

Автор ответа: dfkth

1

A=mgH A=2400*10*20=480000 Дж=480 кДж

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