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2014-05-18T14:17:02+03:00
P=L/t=Fd/t=Fv
v=54 km/h=54x1000/3600=15 m/s
P=30000x15=450 Kw
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2014-05-18T14:59:36+03:00
P=L/t=F*d/t=F*v
v=54km/h=54000m/3600s=15m/s
P=30000N*15m/s=450000W=450kW
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