Two paricle A and B initially at rest, m...

Two paricle A and B initially at rest, move towards each other under mutual force of attraction. At the instant when the speed of A is V and the speed of B is 2V, the speed of the centre of mass of the system is

`3v`

`v`

`1.5v`

zero

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The correct Answer is:

CM remains at rest if initially it is at rest.

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