I've started rolling motion, and have always wondered about the best way to
introduce this to students. I presented a lecture today and am asking for
suggestions about this topic. I started by asking the question:
Can a force contribute to or "cause" an acceleration without doing work?
Another question I discussed is:
When does static friction do work?
I then went on to discuss a box sliding on a horizontal surface, a wheel
rolling on a horizontal surface without slipping, a car and then a disk on an
incline.
How do others approach this topic? If you wish to view my lecture notes they
are at: