a ball of mass 200g from a hieght of 5m what is its kinetic energy when it just reach to the ground
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Given, height, h = 5 m; mass of the ball, m = 200 g = 0.2 kg
When the ball is falling, its PE is converted into KE, so that the total energy is constant.
When the ball just reaches the ground, total PE is converted into KE.
So, KE = PE
KE = mgh
KE = 0.2 x 10 x 5
KE = 10 J
When the ball is falling, its PE is converted into KE, so that the total energy is constant.
When the ball just reaches the ground, total PE is converted into KE.
So, KE = PE
KE = mgh
KE = 0.2 x 10 x 5
KE = 10 J
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