Explorescience.com
http://www.explorescience.com/freefall.htm
Glenbrook High Schools
http://www.glenbrook.k12.il.us/gbssci/phys/Class/1DKin/U1L6a.html
Learn Physics Today
http://library.advanced.org/10796/ch3/ch3.htm
U Penn's Interactive Textbook
http://dept.physics.upenn.edu/courses/gladney/mathphys/subsection1_1_2.html
http://wigner.byu.edu/ProjectileMotion/Projectile.html
Glenbrook High Schools
http://www.glenbrook.k12.il.us/gbssci/phys/Class/vectors/u3l1g.html
Prentice Hall Companion Website
http://cw.prenhall.com/giancoli/chapter3/deluxe.html
The Math and Physics Help Home Page
http://www2.ncsu.edu/unity/lockers/users/f/felder/public/kenny/papers/physicist.html
Glenbrook High Schools
http://www.glenbrook.k12.il.us/gbssci/phys/Class/vectors/u3l1e.html
Learn Physics Today
http://library.advanced.org/10796/ch1/ch1.htm
The Math and Physics Help Home Page
http://www2.ncsu.edu/unity/lockers/users/f/felder/public/kenny/papers/trig.html
University of Guelph
http://www.physics.uoguelph.ca/tutorials/fbd/Q.fbd.html