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A ball hits the floor and rebounds after...

A ball hits the floor and rebounds after an inelastic collision. In this case

A

The momentum of the ball just after the collision is same as that just before the collision.

B

The mechanical energy of the ball remains the same in the collision.

C

The total energy of the ball and earth is conserved.

D

The total momentum of the ball and earth is conserved.

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The correct Answer is:
C, D
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