A ball of mass 200g falls from a height of 5 meter . what is its kinectic energy when its just reaches the ground
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height = 5m
mass of the ball = 200g = 0.2 kg
when the ball is falling, the potential energy is converted into kinetic energy.
in this way, that the total energy is constant.
when the ball just reaches the ground, the potential energy is converted into kinetic energy.
so, KE = PE
KE = mgh
KE = 0.2 x 10 x 5
KE = 0.2 x 50
KE = 10 joule
Hope it helps!!!
mass of the ball = 200g = 0.2 kg
when the ball is falling, the potential energy is converted into kinetic energy.
in this way, that the total energy is constant.
when the ball just reaches the ground, the potential energy is converted into kinetic energy.
so, KE = PE
KE = mgh
KE = 0.2 x 10 x 5
KE = 0.2 x 50
KE = 10 joule
Hope it helps!!!
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