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Get Full Access to University Physics - 13 Edition - Chapter 7 - Problem 7dq
Get Full Access to University Physics - 13 Edition - Chapter 7 - Problem 7dq

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# Is it possible for a friction force to increase the

ISBN: 9780321675460 31

## Solution for problem 7DQ Chapter 7

University Physics | 13th Edition

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Problem 7DQ

Is it possible for a friction force to increase the mechanical energy of a system? If so, give examples.

Step-by-Step Solution:

Solution 7DQ Step 1: Mechanical energy = Kinetic energy + Potential energy Total energy of the system = Kinetic energy + Potential + Work done against frictional force Therefore, TE = KE + PE + W Rearranging the equation, TE - W = KE+PE So, we can write. Mechanical energy = TE - W

Step 2 of 2

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