4th Edition

ISBN: 9780134988559

Author: Wolfson, Richard

Publisher: Pearson Education,

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If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!

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Textbook Question

Chapter 5, Problem 78PP

A spiral is an ice-skating position in which the skater glides on one foot with the other foot held above hip level. It’s a required element in women’s singles figure skating competition and is related to the arabesque performed in ballet. Figure 5.40 shows skater Sarah Hughes executing a spiral during her gold-medal performance at the Winter Olympics in Salt Lake City.

The net force on the skater

a. points to her left.
b. points to her right.
c. is zero.

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Chapter 5, Problem 77PP

Chapter 5, Problem 79PP

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Chapter 5 Solutions

Essential University Physics

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