Question

theoretically," show that total mechanical energy is always conserve in the case of a freely falling body.​

Answer 1

Answer:

It may be shown that in the absence of external frictional force the total mechanical energy of a body remains constant. ... Thus we have seen that sum of potential and kinetic energy of freely falling body at all points remains same. Under the force of gravity, the mechanical energy of a body remains constant.

Answer 2

Answer:

During the fall, the body is at a position B. The body has moved a distance x from A. ... Thus we have seen that sum of potential and kinetic energy of freely falling body at all points remains same. Under the force of gravity, the mechanical energy of a body remains constant.

Explanation:

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