Question

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Describe the law of conservation of energy in terms of the total mechanical energy of a falling object. What happens to the energy as the object falls?

Answer 1

In case of an object falling down, no non-conservative force is acting. Therefore, there is no dissipation of energy, hence the total mechanical energy remains constant. When the object is falling down, as it falls down, the potential energy decreases and the kinetic energy increases by equal amounts. i.e. the amount by which the potential energy decreases, the kinetic energy increases by the same amount such that the total mechanical energy remains conserved(constant).

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