Ratio of kinetic energy and potential energy at a height 4h/5
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Gravitational potential energy near the surface of earth( where acceleration due to gravity has constant value) is directly proportional to height from the surface. At a height h potential energy = mgh.
Kinetic energy = 0
At a height 4h/5 potential energy = 4/5mgh.
The difference mgh - 4/5mgh= 1/5mgh is the kinetic energy.
Ratio of kinetic energy to potential energy is 1:4
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