Question

if the energy of a ball falling from a height of 10 M is reduced by 40% how height will it be rebound

Answer 1

let us consider that when the object starts falling it has 100% energy.
if the energy is reduced by 40% it will affect the height simultaneously.
therefore the ball will rebound for 6m
since 100% - 40%
10m - 40%
6m
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