In a two block system, an initial velocity v0 with respect to ground is given to block A. Which of the following statement(s) is/are correct?

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The momentum of block A is not conserved.

The momentum of system of blocks A and B is conserved.

The increase in momentum of B is equal to the decrease in momentum of block A.

All of the above

answer is D.

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Detailed Solution

Force of friction on A is backward and force of friction on B is forward. Net external force on the system is zero. Hence, momentum of system will remain conserved. As the momentum of system is conserved, so increase in momentum of B is equal to decrease in momentum of A.

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