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Linear Momentum

When two obje...

Question

When two objects collide, then their total momentum before and after collision remains:

A

zero

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B

conserved

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C

fixed

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D

any of these

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Solution

The correct option is B
conserved

For collision occurring between two objects in an isolated system.
The total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.
That is, the momentum lost by first object is equal to the momentum gained by second object.
Hence, momentum is conserved.
Therefore, option (b) is conserved.

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