DISCUSSION THREAD

Reminders/hints:

• When making a mathematical cut across a structural component such as OD, you expose up to  three components of a resultant forces and three components of a resultant couple.
• For the moment equilibrium equations for 3D problems such as this one, it is recommended that you calculate the moments about a point using a cross product. For example, if you want to find the moment about point C due to a force FB acting at point B you should use:  M_C = r_B/C x F_B.
• For Part 4, use Newton’s 3rd law to transfer the reactions on the FBD to the positive x-surface of section OC.

Any questions? Ask (and answer) questions here.