week of 3/30

This week I got more students than used to be, they got some question about homework. and I ask the student who comes over my office hour, about whether they are ready for the exam or not, most of them said not really, and I did tell them this exam, historically speaking, will be the hardest, torque, oscillation, momentum, impulse, its something that harder to image for some of the student, but keep it up, the advice I gave them is, make sure your concept is clear, so you will not easily get trapped. good luck!