1. Two objects, A and B, with masses 2 kg and 3 kg respectively, initially approach each other with velocities of 4 m/s and 2 m/s, respectively. They collide elastically and then move away from each other after the collision. a. Determine the total momentum of the system before the collision. b. Calculate the velocities of objects A and B after the collision. c. Find the change in kinetic energy of the system due to the collision