oblicz moc człowieka o masie 60kg ktory w ciagu 0,5 min wszedl na wysokosc 20m
+ obliczenia
oblicz moc człowieka o masie 60kg ktory w ciagu 0,5 min wszedl na wysokosc 20m
+ obliczenia
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m = 60kg
h = 20m
W = Ep
W = mgh
W = 60kg x 20m x 10N/kg = 12000J
t = 0,5min = 30s
P =W/t
P = 12000J/30s = 400W
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