Rolling Friction. Two bicycle tires are set rolling with

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

Problem 69P Chapter 5

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 69P

Rolling Friction?. Two bicycle tires are set rolling with the same initial speed of 3.50 m/s on a long, straight road, and the distance each travels before its speed is reduced by half measured. One tire is inflated to a pressure of 40 psi and goes 18.1 m; the other is at 105 psi and goes 92.9 m. What is the coefficient of rolling friction ???r for each? Assume that the net horizontal force is due to rolling friction only.

Step-by-Step Solution:

Solution 69P Step 1 of 4: The coefficient of rolling friction( )rwhich is the horizontal force needed for constant speed on a flat surface divided by the upward normal force exerted by the surface. F r That is, coefficient of rolling friction, r = Fnormal Using F = ma and F = mg r normal ma r mg = a …………...1 r g Step 2 of 4: Using kinematics equation, u v = 2as Solving for acceleration, u v a = 2s ………..2 Using equation 2 in 1, = u v ………………...3 r 2gs Where u and v are the initial and final velocities, s is the distance and g is acceleration due to gravity.

Step 3 of 4

Chapter 5, Problem 69P is Solved
Step 4 of 4

Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

University Physics was written by Patricia and is associated to the ISBN: 9780321675460. This full solution covers the following key subjects: rolling, Friction, speed, PSI, goes. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. This textbook survival guide was created for the textbook: University Physics, edition: 13. Since the solution to 69P from 5 chapter was answered, more than 247 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 69P from chapter: 5 was answered by Patricia, our top Physics solution expert on 05/06/17, 06:07PM. The answer to “Rolling Friction?. Two bicycle tires are set rolling with the same initial speed of 3.50 m/s on a long, straight road, and the distance each travels before its speed is reduced by half measured. One tire is inflated to a pressure of 40 psi and goes 18.1 m; the other is at 105 psi and goes 92.9 m. What is the coefficient of rolling friction ???r for each? Assume that the net horizontal force is due to rolling friction only.” is broken down into a number of easy to follow steps, and 80 words.

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