What Is a Rubber Band Car ?
A rubber band car is a car that is made out of cardboard, 2 CDs, duct tape, and a skewer. It is powered by a rubber band. He are the steps to create the car: We started with a 5 by 5 inch piece of cardboard. We then cut in the front 1 and 1/2 inches in and 2 inches across. We then add a skewer in the front and put a piece of duct tape on the front so it would move. We then taped a rubber band to the back so the car would be powered.
How We Used the Video Physics App
We used the video physics app to help interpret acceleration and velocity by filming our car and marking its movement with dots. These dots on the graph correspond with the dots that we placed on the video to mark the cars movement. We then used a meter stick to show a measurement of distance for the video, this helped find the speed of the car and its acceleration.
How We Calculated the Acceleration of the Car
This is the formula for acceleration which we had to use by looking at the graph and examining two points with the greatest acceleration. Then we would take the points and plug them into the formula. When we calculated the acceleration of our car, we found that it was .12 meters per second.