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# A child applies a force parallel to the x -axis to a

ISBN: 9780321675460 31

## Solution for problem 34E Chapter 6

University Physics | 13th Edition

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University Physics | 13th Edition

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Problem 34E

A child applies a force parallel to the x -axis to a 10.0-kg sled moving on the frozen surface of a small pond. As the child controls the speed of the sled, the x -component of the force she applies varies with the x -coordinate of the sled as shown in F? ig. E6.36?. Calculate the work done by when the sled moves (a) from x = 0 to x = 8.0 m; (b) from x = 8.0 m to x = 12.0 m; (c) from x = 0 to 12.0 m.

Step-by-Step Solution:

Solution 34E Step 1: (a).work done by F when sleds move from x = 0 m to x = 8.0 m. W =½ F (Nxx W =½ (10 N)(8 m) W = 40 J. Step 2: (b).work done by F when sleds move from x = 8 m to x = 12.0 m. W =½ F (Nxx W =½ (10 N)(4 m) W = 20 J.

Step 3 of 3

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