F=200Н
S= 50 см=0.5м
t= 10 с
N-?
N=A/t
A=FS
N=FS/t
N=200*0,5/10=10Вт
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F=200Н
S= 50 см=0.5м
t= 10 с
N-?
N=A/t
A=FS
N=FS/t
N=200*0,5/10=10Вт