$8-89$ A W$10$ x $30$ structural steel wide$-$flange beam

$($see Appendix A$)$ is loaded and supported as shown

in Figure $18.$ At section A$-$A of the beam, determine:

$($a$)$ The maximum transverse shearing stress due

to the $5000-$lb load.

$($b$)$ The maximum transverse shearing stress due

to the $5000-$lb load plus the weight of the

beam.

Figure $18$