Pinewood Derby Car

Today is March 19, 2012. Today I a have changed  from testing the speed of a hotwheel car when you add weight, to testing the speed of a pinewood derby car when you add weight, and how fast you can make it go by only changing the weight, and were it is on the car. Today I learned that weight most definently affects speed of a pinewood derby car, but depends on where you position the weight on the car.