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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

A

`5ms^(-1)`

B

`1ms^(-1)`

C

0

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
`v_(CM)= (m_(1)v_(1) + m_(2) v_(2))/(m_(1) + m_(2)) = (2 xx 3 + 3 xx 2)/(2+3)= (12)/(5)= 2.4 m//s`
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