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02-07-2017
Physics

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An object lifted 10 meters gains 200 j of potential energy. if the same object is lifted 20 meters, its potential energy gain is

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15-07-2017

Ep1=mgh1
200J=m*9.81m/s2*10m
200J=m*98.1m2/s2
m=200J/(98.1m2/s2)
m=2.04kg
Ep2=mgh2
Ep2=2.04kg*9.81m2/s2*20m
Ep2=400J

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