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Question

Physics Question on Motion in a plane

If a ball of mass 0.1 kg hits the ground from the height of 20 m and bounce back to the same height then find out the force exerted on the ball if the time of impact is 0.04 sec (g = 10 m/s2)

A

100N(+j^)100N(+\hat{j})

B

200N(+j^)200N(+\hat{j})

C

100N(+j^)100N(+\hat{-j})

D

1000N(+j^)1000N(+\hat{j})

Answer

100N(+j^)100N(+\hat{j})

Explanation

Solution

The correct option is(A): 100N(+j^)100N(+\hat{j})