1C20.30 - Acceleration on the Air Track
Demonstrate that distance is proportional to time squared during acceleration.
Place the air track on a 5 ft cart, if available. Put two photogate timers on the track and plug the one closest to the starting point of the cart into the START port of the timer and the furthest photogate timer into the STOP port of the timer. Attach the air supply to the track and place the air supply on an ON/OFF switch. Level the air track. Place 1.5 inch riser block under the single leg of the air track. Run the demo to ensure it is operating as expected.
Make sure the timers are reset. Place the riser block under the single leg to the desired level. Place the cart on the high side of the track and let it go. Be careful to not introduce an initial velocity. Be sure to reset the timers before you run it a second time. Feel free to move the photogate timers as desired.