Essential University Physics: Volume 1 (4th Edition)

Published by Pearson
ISBN 10: 0-134-98855-8
ISBN 13: 978-0-13498-855-9

Chapter 12 - Exercises and Problems - Page 225: 61



Work Step by Step

As the bracket is in equilibrium so $\sum \tau_{pivot}=0$ $\implies F_B\times 4.5-W\times 12=0$ $F_B=\frac{W\times 12}{4.5}=\frac{314\times 12}{4.5}=840N$ We also know that $\sum F_x=0$ $\implies F_{Ax}+F_B=0$ $F_{Ax}=-F_B$ $F_{Ax}=-840N$ The negative sign indicates that the force is in opposite direction.
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