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Mountain Climbing. Mountaineers often use a rope to lower

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 45P Chapter 11

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 45P

Mountain Climbing. Mountaineers often use a rope to lower them-selves down the face of a cliff (this is called ?rappelling?). They do this with their body nearly horizontal and their feet pushing against the cliff (?Fig. P11.45?). Suppose that an 82.0-kg climber, who is 1.90 m tall and has a center of gravity 1.1 m from his feet, rappels down a vertical cliff with his body raised 35.0° above the horizontal. He holds the rope 1.40 m from his feet, and it makes a 25.0° angle with the cliff face. (a) What tension does his rope need to support? (b) Find the horizontal and vertical components of the force that the cliff face exerts on the climber’s feet. (c) What minimum coefficient of static friction is needed to pre-vent the climber’s feet from slipping on the cliff face if he has one foot at a time against the cliff?

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Chapter 11, Problem 45P is Solved
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Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

This textbook survival guide was created for the textbook: University Physics, edition: 13. The full step-by-step solution to problem: 45P from chapter: 11 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. University Physics was written by and is associated to the ISBN: 9780321675460. The answer to “Mountain Climbing. Mountaineers often use a rope to lower them-selves down the face of a cliff (this is called ?rappelling?). They do this with their body nearly horizontal and their feet pushing against the cliff (?Fig. P11.45?). Suppose that an 82.0-kg climber, who is 1.90 m tall and has a center of gravity 1.1 m from his feet, rappels down a vertical cliff with his body raised 35.0° above the horizontal. He holds the rope 1.40 m from his feet, and it makes a 25.0° angle with the cliff face. (a) What tension does his rope need to support? (b) Find the horizontal and vertical components of the force that the cliff face exerts on the climber’s feet. (c) What minimum coefficient of static friction is needed to pre-vent the climber’s feet from slipping on the cliff face if he has one foot at a time against the cliff?” is broken down into a number of easy to follow steps, and 149 words. Since the solution to 45P from 11 chapter was answered, more than 535 students have viewed the full step-by-step answer. This full solution covers the following key subjects: cliff, feet, face, climber, rope. This expansive textbook survival guide covers 26 chapters, and 2929 solutions.

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