3. Two balls collide in a perfectly clastic collision. Ball I has mass 4.0 kg and is initially travelling at a velocity of 5.5 m's [ right]. It collides head-on with stationary ball 2 with mass 6.0 kg. Determine the final velocities of both balls by using the formulas on the bottom of the page. No shortcut formulas for full marks! /8 marks) mv+mv = my +mv IN 2