Ответ:
A = Fₓ*S = F*cos α * S = 32*cos 60°*18 = 32 * (1/2) * 18 = 16*18 = 288 Дж
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Ответ:
A = Fₓ*S = F*cos α * S = 32*cos 60°*18 = 32 * (1/2) * 18 = 16*18 = 288 Дж