Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

Published by Pearson
ISBN 10: 0321740904
ISBN 13: 978-0-32174-090-8

Chapter 5 - Force and Motion - Exercises and Problems - Page 135: 18

Answer

See the figure below.

Work Step by Step

Since the object is in equilibrium, the net force exerted on it must be zero. So that $$F_x=0 \;\;\;\;{\rm and }\;\;\;\;F_y=0$$ This means that the third force had to have a negative horizontal force component and a negative vertical force component as well, as we see below.
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