Solution Found!
The beam AB has a negligible mass and
Chapter 8, Problem 8-45(choose chapter or problem)
The beam AB has a negligible mass and thickness and is subjected to a triangular distributed loading. It is supported at one end by a pin and at the other end by a post having a mass of 50 kg and negligible thickness. Determine the minimum force P needed to move the post. The coefficients of static friction at B and C are \(\mu_{\mathrm{B}}=0.4\) and \(\mu_{\mathrm{C}}=0.2\), respectively.
Questions & Answers
QUESTION:
The beam AB has a negligible mass and thickness and is subjected to a triangular distributed loading. It is supported at one end by a pin and at the other end by a post having a mass of 50 kg and negligible thickness. Determine the minimum force P needed to move the post. The coefficients of static friction at B and C are \(\mu_{\mathrm{B}}=0.4\) and \(\mu_{\mathrm{C}}=0.2\), respectively.
ANSWER:
Step 1 of 3
Draw the free body diagram of the bar AB and the post BC;
Moment equilibrium about point A;