A 663 kg hammer of a pile driver is lifted 3.3 meters above a piling head. If the hammer is released, what will be its velocity (in m/s) at the instant it strikes the piling? Correct Answer: 8.0 ± 0.1

A 663 kg hammer of a pile driver is lifted 3.3 meters above a piling head. If the hammer is released, what will be its velocity (in m/s) at the instant it strikes the piling? Correct Answer: 8.0 ± 0.1

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section6.3: Relative Velocity

Problem 27PP

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

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A 663 kg hammer of a pile driver is lifted 3.3 meters above a piling head. If the hammer is released, what
will be its velocity (in m/s) at the instant it strikes the piling?

Correct Answer: 8.0 ± 0.1

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