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Three identicle particle each of mass `1 kg` are placed with their centres on a straight line. Their centres are marked `A, B and C` respectively. The distance of centre of mass of the system from `A` is.

A

`(AB+AC)/(2)`

B

`(AB+BC)/(2)`

C

`(AC-AB)/(3)`

D

`(AB+AC)/(3)`

Text Solution

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The correct Answer is:
D
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