"Video Physics brings complex video analysis to iPhone, iPod touch and iPad and into the hands of the students. The app allows students to take a video of any object in motion and then by marking it.
Physics will display the path of the ball and provide graphs of Y vs X as well as the X and Y position and velocity as a function of time.
This app is perfect for reluctant students that are not engaged in physics and allows them to use technology and see real life situations being transformed into quite complex graphical physics."
Via John Pearce