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A heavy block A is made to move uniforml...

A heavy block A is made to move uniformly along a smooth floor with velocity `V = 0.01` m/s towards left. A ball of mass `m = 50 g` is projected towards the block with a velocity of `u = 100` m/s. The ball keeps bouncing back and forth between the block A and fixed wall B. Each of the collisions is elastic. After the ball has made 1000 collisions with the block and wall each, the distance between the block and the wall was found to be `L = 1.2 m`. Calculate the average force being experienced by the block due to collision at this instant. All collision are instantaneous

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The correct Answer is:
`F ~= 1200 N`
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