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Exercise 1. Which has the greater gravitational potential energy? (Assume both pendulum bob have equal mass) A. bob a B. bob b C. they have the same potential energy D. cannot be determined 2. At which position is the potential energy of the man greatest? A. When the man is between the water surface and the diving board B. When the man touches the surface of the water C. When the man is on top of the diving board D. When the man is below the water surface 3. At what point of the roller coaster the cart experienced the lowest gravitational potential energy? A. A B. B C. C D. D 4. When drop at the same height, which object has the greatest potential energy? A. basketball B. bowling ball C. tennis ball D. pingpong ball water surface A. bike B. motorcycle C. car D. cargo truck 6. Which of the following has the greatest KE? diving board 5. Assuming the vehicles are moving with the same velocity, which has the greatest KE? ▬▬▬▬▬▬▬▬▬▬