How to Calculate How Fast a Plane’s Flying—While You’re on It When you look out of the window of a plane, everything looks so small. But they're all big enough to do some physics.

Vernier Video Physics uses video data to calculate velocity over time. Vernier Software & Technology has rolled out a new application that works with the iPod touch, iPad, or iPhone to collect physics ...

Velocity-time graphs show how the velocity (or speed) of a moving object changes with time. These graphs also show if the object is moving at a constant speed or accelerating, decelerating, or still.