Answer
B
Work Step by Step
We know that the slope is positive hence according to the equation $F=-\frac{dU}{dx}$, the force is negative and attractive.
Essential University Physics: Volume 1 (3rd Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0321993721
ISBN 13:
978-0-32199-372-4
Chapter 7 - Exercises and Problems - Page 128: 71
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