Question

A particle of mass m moving with velocity v collides with a stationary particle of mass 2m, making inelastic collision. The speed of the system, after collision, will be

(a) v/2 

(b) 2v 

(c) v/3 

(d) 3v

Answer 1

Correct option (c) v/3

Explanation :

Let the speed of the system after collison = v'

Using the principle of conservation of linear momentum. as the two bodies stick together