Airtrack: Glider passes "start" and "stop" gates on digital timer.

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(A)Mechanics - A+37: Motion in One Dimension

Air Track with Timer. Glider is launched with spring, trips the first photogate starting the Digital Timer, then trips the 2nd photogate, stopping the Digital Timer. Class can see time on the large 3-Digit Display.
UCB Index: 
A+37+5
PIRA Index: 
1C10.27
Demo Diagram: 

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