In the above question, if another body is at rest, then velocity of the compound body after collision is
In the above question, if another body is at rest, then velocity of the compound body after collision is
$v/2$
$2v$
$v$
$Zero$
In the above question, if another body is at rest, then velocity of the compound body after collision is
If initially second body is at rest then
Initial momentum = $mv$
Final momentum $= 2mV$
By conservation of momentum $2mV = mv$ ==> $V = \frac{v}{2}$