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Get Full Access to University Physics - 13 Edition - Chapter 6 - Problem 89p
Get Full Access to University Physics - 13 Edition - Chapter 6 - Problem 89p

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# On an essentially frictionless, horizontal ice rink, a

ISBN: 9780321675460 31

## Solution for problem 89P Chapter 6

University Physics | 13th Edition

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Problem 89P

On an essentially frictionless, horizontal ice rink, a skater moving at 3.0 m/s encounters a rough patch that reduces her speed to 1.65 m/s due to a friction force that is 25% of her weight. Use the work–energy theorem to find the length of this rough patch.

Step-by-Step Solution:

Solution 89P Step 1 of 1: According to work energy theorem, work done = change in kinetic energy W total= (K.E) 2(K.E) 1 (K.E) 1 m v1 2 2 0 1 2 (K.E) 2 m v2 2 = m(0.55 v ) 2 2 0 1 = 0.3025 ( m2 ) 2 0 The work energy relation gives (0.25 mg)s = 0.3025 ( mv ) 2 2 0 0.3025 ( mv ) s = 2 0 (0.25 mg The mass divides out, and solving gives , s=1.3 m

Step 2 of 1

##### ISBN: 9780321675460

This full solution covers the following key subjects: patch, rough, moving, essentially, Find. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. Since the solution to 89P from 6 chapter was answered, more than 396 students have viewed the full step-by-step answer. University Physics was written by and is associated to the ISBN: 9780321675460. The full step-by-step solution to problem: 89P from chapter: 6 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. This textbook survival guide was created for the textbook: University Physics, edition: 13. The answer to “On an essentially frictionless, horizontal ice rink, a skater moving at 3.0 m/s encounters a rough patch that reduces her speed to 1.65 m/s due to a friction force that is 25% of her weight. Use the work–energy theorem to find the length of this rough patch.” is broken down into a number of easy to follow steps, and 47 words.

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