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v=36km/h=10m/s
t=50s
P=W/t
W=E
E=mV^2/2
E=(1000000kg*100 m^2/s^2)/2=50000000J
praca to 50000000J
w=pracra
t=czas
p=3600/50=72
P=W/t
W=ΔE
E₁=mv²/2=1000000*10²/2=50 000 000J
E₂=0
ΔE=50 000 000J=W
P=50 000 000/50=1 000 000W=1MW