Problem #$2$: The solid rod is subjected to the loading shown. Determine the state of stress at points A$,$ B$,$ C$,$ and D$.$ You must show all necessary FBDs$,$ use equilibrium equations to determine internal forces, use positive beam notation, etc. Be very clear about what equations you are using and use appropriate units in every step of every equation. For each point, sketch the state of stress on$-$a stress block using stress block positive notation.