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posted by meena Saturday, June 30, 2012 at 8:19am.

a rubber ball of mass 50g falls from a height of 10 cm and rebounds to a height of 50 cm .determine the change in the linear momentum and average force between the ball and the ground taking time of contact as 0.1 sec

Are you sure you have stated the problem correctly? Unless thrown downward at a high velocity, the ball cannot rebound to a higher height than it started from.

Sure, the problem is correct. The answer is 0.225 kg m/sec

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