give the proof for the conservation of mechanical energy for a body falling freely under gravity
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If a body of mass m is in motion with speed v, then its kinetic energy is equal to K=12mv2. Let us now prove the conservation of the mechanical energy during a body falling freely. ... Hence, its kinetic energy will be K2=12mv2 and change in kinetic energy (ΔU) will be K2=12mv2.
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Law of conservation of energy - Energy can neither be created nor be destroyed; it can only be transformed from one form to another. Consider a body of mass m placed at A. The total mechanical energy of the body at A, B and C (also at any other point in the path AB) is the same.
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