Using the figure shown below, work out the total KE of ball A in the final. sequence (3). (1) Ball A begins with 100 J of KE and travels along a rough surface for 20 m, where it loses 28 J as heat due to friction. (2) Ball A collides with a wall, where it loses another 14 J as heat due to the collision. (3) Ball A bounces off the wall after it's collision and travels another 10 m on the same surface. What is the amount of KE in ball A and the end of sequence 3? (1) (2) (3) A A 20 m 20 m 10 m A

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