Odpowiedzi

2010-03-15T20:14:54+01:00
Dane:
V = 36 km/h = 36 000 m / 3600 s = 10 [m/s]
F = 200 N
Rozw.:
P = F × V = 200 N × 10 [m/s] = 2000 W = 2 kW
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2010-03-15T20:16:06+01:00
P=W/t = (Fs)/t = Fv
v=36 km/h=36000/3600=10 m/s
P=200N*10 = 2000 W