Newton's 3 Laws of Motion

Here's a nice site...


http://www.glenbrook.k12.il.us/gbssci/phys/Class/newtlaws/newtltoc.html

for concepts and etc..

physics

http://www.academicearth.org/courses/physics-iii-vibrations-and-waves

Static Equilibrium

Here a site that might help you guys!


http://www.glenbrook.k12.il.us/gbssci/phys/Class/vectors/u3l3c.html