I have a friend who recently started teaching physics to high school students. I showed him this software, which I found through searching a few weeks ago, and he loved it.

Another great program is Vernier Video Physics for iOS devices. http://www.vernier.com/soft/videophysics.html

Also, Angry Birds physics makes me angry -- it's terribly unrealistic.

I came to post this exact comment.

I built an pneumatic cannon to launch tennis balls and rockets etc with my kids and I want to figure out the height and speed of various projectiles and air pressures.

free video tracking/analysis software: http://www.cabrillo.edu/~dbrown/tracker/