A bit of friction, then forces in uniform circular motion

Let's start with one final example of how one can use forces to solve a complicated problem:

• A tilted Atwood machine with friction

The main topic of the day is uniform circular motion (UCM); specifically, what sort of forces are required to cause an object to move in UCM?

• Forces in UCM

Some rather strange phenomena can happen when the circle is oriented vertically ...

• Why doesn't the ball make it all the way around the loop?
• Flying a loop

Copyright © Michael Richmond. This work is licensed under a Creative Commons License.