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Two particles each of the same mass move...

Two particles each of the same mass move due north and due east respectively with the same velocity .V.. The magnitude and direction of the velocity of centre of mass is

A

`(V)/(sqrt(2))NE`

B

`sqrt(2)VNE`

C

`2VSW`

D

`(V)/(2)SW`

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The correct Answer is:
A
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