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t - 1h = 3600s
W- 2160kJ = 2 160 000J
P =W /t
P = 2160000J / 3600s
P =600W
P= F x V
V= P / F
V= 600W/300N
V= 2m/s
Odp. Prędkość konia i wozu wynosi 2m/s.
t=3600s
W= 2160kJ= 2160000J
V=?
wzor jak w/w
W=F*V*t--->V=W/(Ft)=2160000/(300*3600)=2m/s