Two particles A and B of mass m and one particle C of mass M

Last updated: 7/9/2022

Two particles A and B of mass m and one particle C of mass M are kept on the x-axis in the order ABC. Particle A is given a velocity vî. Consequently there are two collisions, both of which are completely inelastic. If the net 7 energy loss because of these collisions is 7/8 of the initial energy, the value of M is (ignore frictional losses) (A) 8m (B) 6m (C) 4m (D) 2m