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11. A pendulum consists of a 2.2 kg bob attached to a 2.8 meter long string. The bob has a velocity of 4.7 m/s as it passes the bottom. Considering the point where the string makes a 29" angle with the vertical, determine the following: The speed of the bob. b. The Ep of the bob, c. The tension in the string. d. Was is the angle of the string when the bob is at its highest point