P=A/t=Fs/t=mgs/t
mgs=Pt
m=Pt/gs=4000 Вт * 120с/15м*10Н/кг=3200 кг=3,2 т
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P=A/t=Fs/t=mgs/t
mgs=Pt
m=Pt/gs=4000 Вт * 120с/15м*10Н/кг=3200 кг=3,2 т