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dane : szukane:
F=500N P=?
s=60km = 60 000m
t=2 h= 7 200s
W=F*s
P=W/t
W=500N * 60 000m = 30000000J
P= 30000000J/7 200s= 4166,6W ( w przybliżeniu)
tylko 1 wiem i nie jestem pewna ........ ale raczej tak O.O