A = F*l
F = mg
A = (mg) * l
A = (3 * 9,81) * 1,5 = 44,145 Дж
Ответ : 44,145 Дж
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A = F*l
F = mg
A = (mg) * l
A = (3 * 9,81) * 1,5 = 44,145 Дж
Ответ : 44,145 Дж