Предмет: Физика, автор: mixa87549

Придумайте, как определить коэффициент полезного действия при подъеме тела по наклонной плоскости.

Ответы

Автор ответа: hhhodakovskaya

Ответ:

По формуле.

Объяснение:

А полезная/А затраченная × 100%

Требуется определить, какая работа является полезной, а какая–затраченной.

Полезная–то, что необходимо выполнить в задаче.

Затраченная–работа, часть энергии которой идет на преодоление силы трения и сопротивления воздуха.

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