c Fig.(1) shows the head on collision between two masses. The coeffi cient of restitution is e, where 1 > e > 0. Derive an expression for V At rest Before collision m2 After collision m2 Figure 1: The collision between two balls of mass m and mass m2 and state and explain if there exists a condition(s) for which the lighter ball bounces off the heavy ball and thus reverses the direction of its motion after the collision. 'Question I continues on the next page d Fig(2) shows the acceleration of a particle for the first 118. [6 marks] Figure 2: The acceleration of a particle for the first 11 seconds (i) Complete the following expression for 0t11: a(t) = { 0t4; 4, -t- 4