P = A / t
A = F *S (где S - перемещение )
F = mg
P = mg * S / t
P = 120 * 10 * 10 / 5 = 2400 Вт
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P = A / t
A = F *S (где S - перемещение )
F = mg
P = mg * S / t
P = 120 * 10 * 10 / 5 = 2400 Вт