One of the three problems for homework was a doozy, so we talked about it for a little while. If you aren't given an obvious pivot point, what do you do? Well, it seems that in rotational equilibrium, any point on the object could be our pivot point. Since it's not rotating around any particular point, it must be rotational equilibrium around every point in the object. We then whiteboarded the problems using our model of torque.
We saw, further on, a question was going to ask about a force pointing at an angle. How do we deal with that? We weren't sure, so it was off to lab. The lab didn't give great results, but we figured out how to incorporate the angle between the force and the distance to the pivot point into our model.