Odpowiedzi

2010-02-15T15:50:02+01:00
P=W/t
W=F*s
P=F*s/t
P=500*3/3=500W
2010-02-15T15:50:34+01:00
Dane:
h =3m
F = 500 N
t = 3 s
Rozw.:
P = W/t
W = F × h
P = F × h /t = 500 N × 3 m /3 s = 500 W
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