Предмет: Физика, автор: arturkekerka

Кран поднимает балку на высоту 21 м, вес балки равен 17 кН. Вычисли работу, совершаемую краном. СРОЧНООООООО!!!!

Ответы

Автор ответа: DeadCodeWriter

1

Ответ: 357000Дж

h=21м

Р=17 кН->17000H

A=F*S->P*S->17000*21=357000Дж

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