Question

The50-lb homogeneous bar AB is suspended from a rope that runs over a small peg at C. The bar is kept in the position shown by the horizontal force P. Determine the smallest coefficient of static friction at C for which the bar will be at rest. C

Step 1

Show the free body diagram of the given bar and rope and the detail of rope at *C* as in Figure (1).

Step 2

Take the counter clockwise moment as positive and clockwise moment as positive.

Take moment about point *A* and *B*;

Determine the tension force in cable *A* and *B* using the Equation of equilibrium;

Step 3

Determine the value of angle...

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