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A ball of mass m collides with the groun...

A ball of mass m collides with the ground with velocity and then comes up in the same direction with the same velocity. The change occurred in the momentum of this ball ……..

A

4mv

B

2mv

C

mv

D

0

Text Solution

Verified by Experts

Initial momentum of the ball `P_(1)`- mv (Negative sign suggests that the ball moves in the downward direction
Final momntum of the ball `p_(f)`+mv
`therefore` Change in the moementum of the ball 2 mv
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KUMAR PRAKASHAN-FORCE AND LAWS OF MOTION-QUESTIONS AND ANSWERS( Choose the correct option from those given below each question :)
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  9. kg ms^(-2) is the unit of which physical quan tity?

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  10. On applying force in opposite direction of motion of an object, what e...

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