If potential energy is conserved or remain the same, the ball will bounce 3 m high.
Conservation of energy
The principle of conservation of energy states energy can neither be created nor destroyed but can be converted from one form to another.
If we apply the principle of conservation of energy, the total potential energy will remain the same.
P.E(initial) = P.E(final)
Thus, If potential energy is conserved or remain the same, the ball will bounce 3 m high.
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