Identify and circle any errors in the student drawn free body diagrams of post $CD$, then draw a neat, correct, labeled free body diagram of your own. Assume that both parts have non-negligible weight, and that contact surfaces are smooth.

Identify and circle any errors in the student drawn free body diagrams of post $CD$, then draw a neat, correct, labeled free body diagram of your own. Assume that both parts have non-negligible weight, and that contact surfaces are smooth.