A continuous cable is used to support blocks A and $B$ as shown in Fig. P$3-17.$ Block $A$ is

supported by a small wheel that is free to roll on the cable. Determine the displacement y of block

A for equilibrium if the weights of block A and B are $50$ lb and $75$ lb $,$ respectively. Begin the

solution with $(2)$ Free Bodv Diagrams $($FBD$)$ and Equations of Equilibrium for each FBD$.$

Fig. P$3-17$