Work, Energy and Power

Question: A body of mass 2 kg collides with a wall with speed 100 m/s and rebounds with same speed. If the time of contact was 1/50 second, the force exerted on the wall is

1) 8 N

2) $2 \times {10^4}\,N$

3) 4 N

4) ${10^4}\,N$

Solution:

Explanation: No Explanation

WEP Elastic and Inelastic collision

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