04. Figure Q4 shows a ball dropped vertically from a height, h, above the ground, G and rebounds to height of hs. One of the methods to measure the coefficient of restitution for a particle-ground impact by measuring the change in heights. Proved the statement by using conservation of energy (8 marks) If the ball experienced perfectly elastic collision, explain the bouncing height of the ball after it hit the ground (2 marks) If the ball is dropped to the glass floor platform that has coefficient of restitution, 0.55, with the same initial height, determine the height after it bounces off the surface. (2 marks) hu= 3.2 m ha= 1.85 Figure 04

04. Figure Q4 shows a ball dropped vertically from a height, h, above the ground, G and rebounds to height of hs. One of the methods to measure the coefficient of restitution for a particle-ground impact by measuring the change in heights. Proved the statement by using conservation of energy (8 marks) If the ball experienced perfectly elastic collision, explain the bouncing height of the ball after it hit the ground (2 marks) If the ball is dropped to the glass floor platform that has coefficient of restitution, 0.55, with the same initial height, determine the height after it bounces off the surface. (2 marks) hu= 3.2 m ha= 1.85 Figure 04