Click the green, red, or blue buttons to race one car. The race is paused, unless you are pressing the space bar. Release the space bar, and the race pauses again. Click GvR, RvB, GvB,
I created this for a high school physics lab, introducing position-time graphs, leading to average speed calculations. The students run scripts to start the cars in motion, and use the space bar to pause the cars while they record position and time information for later charting and analysis.
