Question

A ball is left to fall from a
height of 10m. If 40% of
its energy is lost after striking the floor upto what height
the ball will go up after
striking the floor??​

Answer 1

Answer:

as we know potential energy=mgh

therefore the P.E. of the body is directly proportional to the height.

as 40% of the energy is lost then the body after hitting the ground will rise only 60% of the height from where it was left.

Therefore the body will rise upto 6m after striking the ground

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