How do I do it? I see a road next to my window here at college (lots of cars go by) and I want to see how fast they're going.
I see a light post and a speed limit sign. I can use that as the measured distance.
What's a good way to measure the distance, other than using my car? When I measure the distance, what units should it be in? Feet?
Do I start the stop watch when the FRONT of the car hits the light post and then stop the watch when the FRONT of the car hits the speed limit sign?
I'll have a time (let's say 2.34 seconds) and then what do I do?