A 2 kg body and a 3 kg body are moving a...

A 2 kg body and a 3 kg body are moving along the x-axis. At a particular instant the 2 kg body has a velocity of `3 ms^(-1)` and the 3 kg body has the velocity of `2ms^(-1)`. The velocity of the centre of mass at that instant is

`5"ms"^(-1)`

`1"ms"^(-1)`

None of these

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The correct Answer is:

`v_(CM)=(m_(1)v_(1)+m_(2)v_(2))/(m_(1)+m_(2))=(2xx3+3xx2)/(2+3)=(12)/(5)=2.4` m/s .

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