Предмет: Физика, автор: LoveDota2Forever

Подъемный кран поднял груз весом 1000 Н на высоту 20 м за 10 с. Определите совершаемую работу

Ответы

Автор ответа: Dyniel

A=Fs
A= 1000 H * 20 м
A= 20000 Дж - совершённая работа.
Формула мощности: N=A:t
N = 20000 Дж : 10 с
N = 2000 Вт - полезная мощность в единицу времени.
Вывод: 2000 Вт = 2 кВт в секунду.

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