A 5.5 kg ball is thrown verticallly down at 2.5 m/s from the height of 2m above the horizontal floor.

A 5.5 kg ball is thrown verticallly down at 2.5 m/s from the height of 2m above the horizontal floor. If the coefficient of restitution between the floor and the ball is 0.3 , how high shall the ball rise after striking the ground


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