Предмет: Физика, автор: liza14011

Помогите решить задачу)-Из шахты глубиной 60м с помощью подъемника поднимают 1т руды за 20 с. Определите мощность двигателя подъемника.

Ответы

Автор ответа: 0ШПИОНКА0

Дано: h=60M, m=1Т, t=20C. N=?
Си: m=1000КГ.
Формулы: A=mgh, N=mgh/t.
Решение: N=1000*10*60/20=30000Вт=30кВт.
Ответ: 30кВт.

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