Energy with Non-Conservative Forces Video Lessons

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Problem: You drop a ball from a height of 2.1 m, and it bounces back to a height of 1.3 m.(a) What fraction of its initial energy is lost during the bounce?(b) What is the balls speed just before the bounce?(c) Where did the energy go?(d) What is the balls speed just after the bounce?

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You drop a ball from a height of 2.1 m, and it bounces back to a height of 1.3 m.
(a) What fraction of its initial energy is lost during the bounce?
(b) What is the balls speed just before the bounce?
(c) Where did the energy go?
(d) What is the balls speed just after the bounce?

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Based on our data, we think this problem is relevant for Professor Diaz's class at UTC.