Answer
(a) $-3J$
(b) $-4J$
Work Step by Step
(a) We can find the work done from A to B along path 1 as
$W_{AB}=15J-18J=-3J$
(b) We can find the work done from B to A along path 2 as
$W_{BA}=-15J-(-6J-5J)=-15J+11J=-4J$
Physics Technology Update (4th Edition)
by Walker, James S.
Published by
Pearson
ISBN 10:
0-32190-308-0
ISBN 13:
978-0-32190-308-2
Chapter 8 - Potential Energy and Conservation of Energy - Problems and Conceptual Exercises - Page 244: 1
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