|Rubber Band car Material|
Our first car, the original, it was made of two CDs, one skewer, modified 5"x5" cardboard piece, and duct tapes.
What are rubber band cars? They are car that are powered by band and they roll on two CDs. These two CDs function as wheels of the car and are attached to a skewer which is the axle. We are allowed to attach these two components using only duct tape.
[Velocity and Acceleration]
Velocity is a cars speed over a course of time. This speed can be in any direction. The velocity is calculated by finding an item's change in position and dividing that by the amount of time it took to change that much position. For our final car that we talk about below it reached a top velocity of two meters per second.
Acceleration is the car's increase of speed over a period of time. To find this we chose two points on the graph below then calculated the acceleration using the formula. When testing a moving object you always want to know it's acceleration to see how fast it gets to it's top speed and at what rate.