Answer
The $\Delta$$E_{mec}$ along the direct path is 12J.
Work Step by Step
The 3 conservative force paths all have a $\Delta$$E_{mec}$ of 12J. The direct path is also a conservative force so its $\Delta$$E_{mec}$ must also be 12J.
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 8 - Potential Energy and Conservation of Energy - Questions - Page 200: 3a
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