A ball of mass 0.15 kg is dropped from a height 10 m, strikes the ground and rebounds to the same height. The magnitude of impulse imparted to the ball is nearly ( 
) [NEET 2021]
Text Solution
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We know that,
where, 
Here, 
is velocity reaches to the same height, 
is velocity just before striking to the ground. For case (1), ball dropped from the 10 m height and strikes to the ground.
Now, the velocity of the ball just before striking to the ground is
For case (2), ball rebounds to the same height. The velocity with which the ball just reaches to the same height,
Now, magnitude of the impulse imparted to the ball,
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