Solve the problem using BELT FRICTION.
Extracted text: 8.37 Bar AB is attached to collars that can slide on the inclined rods 45° shown. A force P is applied at point D located at a distance a from end A. Knowing that the coefficient of static friction m, between each collar and the rod upon which it slides is 0.30 and neglecting the weights of the bar and of the collars, determine the smallest value of the ratio a/L for which equilibrium is maintained. A B Fig. P8.37