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Physics | 4th Edition | ISBN: 9780321611116 | Authors: James S. Walker
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In the system shown in Figure 817, suppose the block has a

Chapter 8, Problem 6

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QUESTION:

In the system shown in Figure 817, suppose the block has a mass of 2.7 kg, the spring has a force constant of 480 N/m, and the coefcient of kinetic friction between the block and the oor is 0.16. (a)Find the work done on the block by the spring and by friction as the block is moved from point A to point B along path 2. (b) Find the work done on the block by the spring and by friction if the block is moved directly from point A to point B.

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QUESTION:

In the system shown in Figure 817, suppose the block has a mass of 2.7 kg, the spring has a force constant of 480 N/m, and the coefcient of kinetic friction between the block and the oor is 0.16. (a)Find the work done on the block by the spring and by friction as the block is moved from point A to point B along path 2. (b) Find the work done on the block by the spring and by friction if the block is moved directly from point A to point B.

ANSWER:

Step 1 of 3

a)

Lets calculate the work done on the block by the spring and by friction as the block is moved from point  to point B along path 2.

We use

 to calculate the work done by the spring on the block along the two segments of path 2 .

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