Question

calculate work done when the person hits a ball to the wall at a distance of
6 mts. The weight of the ball is 150 gms.


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Answer 1

Answer:

Answer

Impulse=F×t= Change in Momentum

⇒ Change in Momentum =mv−mu=0.15(12)−0.15(−20)=4.8

⇒F×0.001=4.8

⇒F=4800N

Therefore, A is correct option.