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A ball dropped to earth can not rebound higher than its release point.However,spry from the bottom of a waterfall can sometimes rise higher than the top of the falls. Wgy is this? A ball dropped to earth can not rebound higher than its release point.However,spry from the bottom of a waterfall can sometimes rise higher than the top of the falls. Wgy is this?
During the instant when the dropped ball is in contact with the ground, the flexing and deformation of the ball increase its internal energy at the expense of its kinetic energy; as a result, its speed just after the bounce is smaller than its speed just before the bounce, and so it cannot return to its original state. But in the case of spray from the bottom of a water fall, there is no loss of kinetic energy, but the increase of internal energy due to surrounding air and the kinetic energy of the air left in the wake of the falling water. The increase of internal energy will transfer to the potential energy of the system. Thus the potential energy of the system will increase results water rise higher than the top of the falls. Therefore spray from the bottom of a waterfall can sometimes rise higher than the top of the falls. Hope it helpsregardsarun
Dear student Please fllow the below lnk https://www.askiitians.com/forums/Mechanics/a-ball-dropped-to-earth-cannot-rebound-higher-than_122387.htmGood Luck
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