Problem statements
Solution video – H34.A
Solution video – H34.B
Reminder: Please submit HW34.B. No credit will be given for submitting the wrong homework assignment.
DISCUSSION THREAD
Please post questions here on the homework, and take time to answer questions posted by others. You can learn both ways.
How do we go about setting this up without T = rF. I don’t remember learning that in this class.
I assume you are asking how we get the torque at gear C. Yes, you can consider that there is an interaction force F_C between gear B and C.
When drawing the FBD of gear B, F_C points out of the screen, at the top of gear B. Then F_C will generate a torque as F_C*r_B;
When drawing the FBD of gear C, F_C points into the screen, at the bottom of gear C. Then F_C will generate a torque as F_C*r_C.