N = A/t,A = m * g * h,N = mgh/t
Отсюда:
N = 75 * 9.8 * 2.1 / 0.2 = 7717.5 Вт.
Ответ:7717.5 Вт.
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N = A/t,A = m * g * h,N = mgh/t
Отсюда:
N = 75 * 9.8 * 2.1 / 0.2 = 7717.5 Вт.
Ответ:7717.5 Вт.