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Author Question: High-speed stroboscopic photographs show that the head of a golf club of mass 200 grams is traveling ... (Read 35 times)

gonzo233

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on: Jul 28, 2018
High-speed stroboscopic photographs show that the head of a golf club of mass 200 grams is traveling at 55.0 m/s just before it strikes a 46.0-gram golf ball at rest on a tee. After the collision, the clubhead travels (in the same direction) at 40.0 m/s. Find the speed of the golf ball just after impact.

Question 2

A child bounces a 50-gram superball on the sidewalk. The velocity of the superball changes from 21 m/s downward to 19 m/s upward. If the contact time with the sidewalk is 1/800 s, what is the magnitude of the force exerted on the superball by the sidewalk?


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sultana.d

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Reply #1 on: Jul 28, 2018
Answer to Question 1

65.2 m/s

Answer to Question 2

1 600 N


gonzo233

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Reply #2 on: Jul 28, 2018
Thanks


sultana.d

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Reply #3 on: Jul 28, 2018
Welcome :)


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