## Fundamentals of Physics Extended (10th Edition)

Published by Wiley

# Chapter 8 - Potential Energy and Conservation of Energy - Questions: 3b

The $\Delta$$E_{mec} due to F_{nc} is -2J. #### Work Step by Step The second path from the top has a \Delta$$E_{mec}$ of 10J. All the other paths have a $\Delta$$E_{mec}$ of 12J. For this reason, that second path must be the one with non-conservative forces. These forces account for the loss of 2J.

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