Decent little app

This app is a useful tool for kinematics, especially projectiles.

Advantages:
This is a lot better than the old-school method of tracing motion on overheads taped to a TV screen. Simply take a video, indicate the location of your axes and a scale object, and mark the location of the moving object in each frame. (Simple, but tedious.) Then you get nice kinematics graphs.

Shortcomings:
It would be nice to be able to compensate for camera movement (by, say, indicating the location of fixed objects) and there seems to be no way to take high-speed videos to analyze fast objects. (One can use another app to do that and import the video, but thats an extra step, and an extra purchase.)

Robert Prior about Vernier Video Physics, v2.0.1