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: MC = rB/C x FB.
- 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.
Should our final answer be in terms of Mo or should we have PoL substituted in from Part 4?
For Part 4, please put in terms of P_0.
What about for our final answer in Part 5? Should we have Mo or just Po and L?
Sorry, above I meant to say Part 5. That is, use P_0 and L.