PHY183-Lecture26 - Physics for Scientists Engineers 1...

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February 24, 2006 Physics for Scientists&Engineers 1 1 Physics for Scientists & Physics for Scientists & Engineers 1 Engineers 1 Spring Semester 2006 Lecture 26
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February 24, 2006 Physics for Scientists&Engineers 1 2 Quiz 25.4 Quiz 25.4 • A tennis ball is thrown at a horizontal speed of 10 m/s against the back of a truck. At the same time, the truck is backing up at a speed of 2 m/s (towards the thrower). The mass of the tennis ball is negligible compared to that of the truck. What is the horizontal speed of the tennis ball, after it bounces off the truck, assuming an elastic collision? – a) 10 m/s – b) 12 m/s – c) 14 m/s – d) 16 m/s
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February 24, 2006 Physics for Scientists&Engineers 1 3 Quiz 26.1 Quiz 26.1 A golf ball is released from rest from a height of 0.811 m above ground and has a collision with the ground, for which the coefficient of restitution is 0.681. What is the maximum height reached by this ball after this collision, as it bounces back up?
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