Prove that kinetic energy of a free falling object is transformation of potential energy on reaching the ground
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Explanation:
Total energy at initial position = K.E + P.E = 0 + mgh
Total energy when it reaches the ground = K.E + P.E = 0.5mv^2 + 0
Velocity when it reaches the ground = sqrt(2gh)
Substitute velocity in total energy equation
Total energy when it reaches the ground = 0.5mv^2 = 0.5m * 2gh = mgh
We found that total energy when it reaches the ground = Total energy after approaching the ground.......
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