Calculate the torque of a rod pendulum?
Hello,
I'm trying to calculate the equation of motion of a rod pendulum using the torque approach. However, the pendulum's pivot point isn't at the beginning, but at 1/3 of its length. My problem now is how to set up the torques, since there are two torques during the oscillation (since the pivot point divides the pendulum into two parts).
I tried that but I don't know if it's correct (in the picture).
I don’t want to solve this for you. (inappropriate practice as an e-technic….)
But I see this mistake in the approach:
My colleagues from the mechanics know that much better to treat.
Good luck!