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A steel ball of mass 0.5 kg is dropped f...

A steel ball of mass 0.5 kg is dropped from a height of 4 m on to a horizontal heavy steel slab. The collision is elastic and the ball rebounds to its original height.
If the ball is in contact with the slab for 0.002 s, find the average reaction force on the ball during impact.

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The correct Answer is:
`2000sqrt5N`
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