Two bodies of mass 1 kg and 3kg have pos...

Two bodies of mass 1 kg and 3kg have position vectors `hati+2hatj+hatkand-3hati-2hatj+hatk`, respectively. The centre of mass of this system has a position vecotor :-

A

`-hati+hatj+hatk`

B

`-2hati+2hatk`

C

`-2hati-hatj+hatk`

D

`2hati-hatj-2hatk`

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The correct Answer is:

C

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