Question

a particle A collides head on with a second particle B whose mass is n times the mass of A. the total kinetic energy is the same as the total kinetic energy after impact. if the inital speed of particle a is u, and the final speeds of A and B are Va and Vb respectively. show that
Va= [1-n/1+n]u and Vb= [2/1+n]u

Answer 1

as the total kinetic energy after impact. if the inital speed of particle a is u, and the final speeds of A and B are Va and Vb respectively.