February 7, 2008 Subject:
July 1, 2006 Subject:
This lesson is a pretty good review of "net forces". It has a good animation showing the components of forces and shows how to do the trig involved in solving it. I wish the resultant force were drawn with either a different color or a different line style than the components, however. It is difficult for some students to understand that the resultant "takes the place of" the components or is equal to the components. All in all, though, a good review of Newton's 2nd law.