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Four identical particles each of mass 1 ...

Four identical particles each of mass 1 kg are arranged at the corners of a square of side length `2sqrt(2)m`. If one of the particles is removed, the shift in the centre of mass is

A

`R/(3sqrt(2))`

B

`R/sqrt(2)`

C

`R/(6sqrt(2))`

D

`(sqrt(3)R)/2`

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The correct Answer is:
A
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