A ball is tossed in the air and released. It moves up, reverses direction, falls

Question

A ball is tossed in the air and released. It moves up, reverses direction, falls back down again, and is caught at the same height it was released. Ignore friction and air resistance. What about the mechanical energy of the ball? The mechanical energy of the ball is always a constant. The mechanical energy of the ball is maximum when the ball is released. The mechanical energy of the ball is maximum when the ball is caught. The mechanical energy of the ball is maximum when the ball reaches the highest point. None of above.

Explanation / Answer

1. Mechanical energy is constany

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