Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 12 - Equilibrium and Elasticity - Problems - Page 345: 11b

Answer

force acting on board by left pedestal is directed downward.

Work Step by Step

İf the system is in equilibrium then the total torque is zero. Lets look at the total torque acting on point B (shown in the picture attached below). The torque created by the weight of diver is clockwise so torque created by the left pedestal must be in a counterclockwise direction. This means that the force acting on the board by left pedestal is directed downward.
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