I am in an accelerated physics class so the professor assigns very difficult problems and also has very difficult tests. I assumed when I enrolled that because I had had some high school physics and am generally quick with the sciences that I'd do fine. However, the professor is not exactly communicating with me effectively how to solve problems. In any event does anyone know of an on-line resource that I can use for self-study. I have a test coming up and am not really able to understand a great deal of vector problems he assigns and really just anything.This is a sample of what I will be expected to be able to do. Any help would be GREATLY appreciated.