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360km/h=100m/s
5ton=5000kg
Δh=2km=2000m
ΔEm=Ws
m(100m/s)²/2+mgΔh-m(150m/s)²=Ws
5000kg*10000m²/s²/2+5000kg*10m/s²*2000m-5000kg*22500m²/s²/2=Ws
25000000J+100000000J-56250000J=Ws
125000000J-56250000J=Ws
Ws=68750000J=68,75MJ