m=120 кг h=0.7 м t=0.3 c N=?
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N=A/t=m*g*h/t=120*10*0.7/0.3=1200 Вт (1,2 кВт)
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m=120 кг h=0.7 м t=0.3 c N=?
===
N=A/t=m*g*h/t=120*10*0.7/0.3=1200 Вт (1,2 кВт)
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