   # Consider a block sliding over a horizontal surface with friction. Ignore any sound the sliding might make. (i) If the system is the block , this system is (a) isolated (b) nonisolated (c) impossible to determine (ii) If the system is the surface , describe the system from the same set of choices. (iii) If the system is the block and the surface , describe the system from the same set of choices. ### Physics for Scientists and Enginee...

10th Edition
Raymond A. Serway + 1 other
Publisher: Cengage Learning
ISBN: 9781337553278

#### Solutions

Chapter
Section ### Physics for Scientists and Enginee...

10th Edition
Raymond A. Serway + 1 other
Publisher: Cengage Learning
ISBN: 9781337553278
Chapter 8.1, Problem 8.1QQ
Textbook Problem
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## Consider a block sliding over a horizontal surface with friction. Ignore any sound the sliding might make. (i) If the system is the block, this system is (a) isolated (b) nonisolated (c) impossible to determine (ii) If the system is the surface, describe the system from the same set of choices. (iii) If the system is the block and the surface, describe the system from the same set of choices.

(i)

To determine

### Explanation of Solution

In an isolated system no energy crosses the system boundary by any method. When the block is sliding over a horizontal surface with friction, then it stops after sliding some distance. So, there will be a loss of kinetic energy of the block. This loss in kinetic energy is used to do work against frictional force applied by the surface.

The kinetic energy of the system is used to do work against friction and if the system is the block then, its energy does not remain conserved...

(ii)

To determine

(iii)

To determine

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