You are rearranging the furniture in your living room. In doing so. you push a.

Question

You are rearranging the furniture in your living room. In doing so. you push a. 25.0 kg sofa to the left a total distance of 3.50 m and then you push it back to the right a distance of 1.0 m. The coefficient of kinetic friction between the sofa and the hardwood floor is 0.20 Suppose that you had instead simply moved the sofa to to final position by moving It directly 2.50 m to the left What is the work done by friction in this case? Express your answer in joules to 3 significant figures. Significant Figures Feedback: Your answer -122.5 J was either rounded differently or used a different number of significant figures than required for this part. From the results you obtained m Parts A and 8 what can you conclude about the nature of the friction force? Is it a conservative force? Explain. Essay answers are limited to about 500 words (3800 characters maximum, including spaces).

Explanation / Answer

(C) Force that do not store energy are treated like non-conservative force. In the case of frictional force it do not strore energy although it convert energy in to heat.so it is not conservative force.

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