Find the ball''s maximum height after it bounces

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Reference no: EM13244371

a. You throw a bouncy ball directly down toward the ground. When it leaves your hand, 1 m above the ground, it is moving at 5 m/s. What is the ball's maximum height after it bounces?

b. You and your sled (m = 80 kg) start from rest at the top of a 7 m tall hill, slide down, and travel up to the top of the next hill, 3 m tall. At the peak of the second hill, you are traveling 1 m/s. How much work was done on you by friction?

Reference no: EM13244371

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