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E=m*g*h
4000000= 2kg* 10N * h
4000000= 20h /20
h= 200000m
Fg=10N/kg*2kg=20N
20N*h=4000000J
h=4000000J:20
h=200000m
Ep=M*g*h
g=9,81 m/s^2
m= 2 kg
h=?
Ep = 4000J (napewno kilogramy są w jednostce??)
h=Ep/M*g=4000/(9,81*2)=4000/19,6=204,082 m
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