Determining Internal Loadings $(14$ Points$)$

The beam shown is subjected to $3$ transverse force loadings and a longitudinal force loading of $500$ lb $.$

The beam is attached on the left by a smooth pin connection and on the right by a sliding support.

A$.$ Determine the Internal Loadings $(V,N$ and $M)$ at a distance $4$ ft from the left end of the beam. Show

the free body diagram for the section you used to determine the internal loadings. Don't forget to

determine any reaction forces required in your analysis. $(8$ Points$)$

B$.$ Determine the resulting normal and shear stresses acting on the beam cross section at $B$ due to this

loading. $(6$ Points$)$