Question

When a body collides with another body of same mass at rest after collision, the first body comes to rest where as the second body moves with i) Half of the velocity of the first body ii) Velocity of the first body iii) doubled the velocity iv) none of these​

Answer 1

Answer= Velocity of the first body

We apply conservation of linear momentum in this case,

Let mass be m and velocity of first mass be v1 and velocity of second mass after collision be v2.

mv1=mv2

So we get,

v1=v2

Hope it helps!