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A 6kg ball is dropped and hits the floor vertically moving with speed 11m/s  and rebounds with...

A 6kg ball is dropped and hits the floor vertically moving with speed 11m/s  and rebounds with half the speed (moving upwards). The change in momentum of the ball is __________kg m/s. (Answer to nearest ones digit.)

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Answer #1

Answer is  99 kg m/s

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