STATICS, Example 8.5 Dry friction

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Given: The beam AB is subjected to a uniform load of 200N/m and is supported at A by a hinge and at B by a post BC. If the coefficient of static friction at B and C 0.2 and 0.5 respectively,
Find: Where does slipping occur first at C or B? The force P needed to pull the post out of from under the beam. Assume: Slips on one side and rotates on the other side.

STATICS, Equilibrium of Rigid Bodies
Images from Hibbeler, Statics, 15th ed.
Video by Carmen Muller-Karger, Ph.D
Florida International University
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Thank you so much I have mechanics exam tomorrow and this help me understand so much.

codycosy