A point mass of 1 kg collides elastically with a stationary point mass of 5 kg. After their collision, the 1 kg mass reverses its direction and moves with a speed of 2 m/s. “Which of the following statement(s) is (are) correct for the system of these two masses ?(i) Total momentum of the system is 3 kg m/s.(ii) Total kinetic energy of the system is 4 J.(iii) Velocity of 5 kg mass after collision is 1 m/s