Question

A block of mas m moving at a velocity `upsilon` collides head on with another block of mass 2m at rest. If the coefficient of restitution is 1/2, find the velocities of te blocks after the collision.

Answer 1

Suppose after the collison the block of mass m moes at a velocity `u_1` and the block of mass 2m moves at a velocity `u_2`. By conservationfo momentum,
`mv=mu_1+2mu_2` ……..i
the velocity of seperation is `u_2-u_1` and the velocity of approach is v.
So, `u_2-u_1=v/2`
find i and ii `u_1=0 and u_2=v/2`