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A grindstone in the shape of a solid disk with diameter

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

Solution for problem 59P Chapter 10

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 59P

A grindstone in the shape of a solid disk with diameter 0.520 m and a mass of 50.0 kg is rotating at 850 rev/min. You press an ax against the rim with a normal force of 160 N (Fig. P10.54), and the grindstone comes to rest in 7.50 s. Find the coefficient of friction between the ax and the grindstone. You can ignore friction in the bearings.

Step-by-Step Solution:

Solution 59P Step 1: Data given Diameter d = 0.520 m Radius R = d/2 = 0.26 m Mass m = 50.0 kg Angular velocity = 850 rev/min = 89 rad /sec Normal force F = 160 N Time t = 7.50 s We need to find the friction coefficient We shall find the radius of gyration It is given by K = R/2 Substituting values we get K = 0.26 m/2 K = 0.18 m Step 2 : We need to find the moment of inertia of the wheel It is given by I = mK 2 Substituting values we get 2 I = 50.0 kg × (0.18 m) I = 1.62 kg m 2 Step 3 : We shall find the acceleration of the wheel while reducing the speed It is given by = ( )/t i f Substituting values we get Here = f as the wheel is stopping = (89 rad /sec 0 )/7.50 s = 11.86 rad/s 2

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Chapter 10, Problem 59P is Solved
Step 5 of 6

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

The answer to “A grindstone in the shape of a solid disk with diameter 0.520 m and a mass of 50.0 kg is rotating at 850 rev/min. You press an ax against the rim with a normal force of 160 N (Fig. P10.54), and the grindstone comes to rest in 7.50 s. Find the coefficient of friction between the ax and the grindstone. You can ignore friction in the bearings.” is broken down into a number of easy to follow steps, and 67 words. This full solution covers the following key subjects: grindstone, Friction, ignore, comes, diameter. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. University Physics was written by and is associated to the ISBN: 9780321675460. The full step-by-step solution to problem: 59P from chapter: 10 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. Since the solution to 59P from 10 chapter was answered, more than 426 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: University Physics, edition: 13.

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