Tech Help

I need to make a rubber band powered car for a technology project at school. I can get help from any resource, use any materials to build it, the only rule is I can only use one rubber band to power it. Please help any way you can, i'm having trouble with this o.O

That's the only rule? Than this is easy, my boy!

Just build the car without any power source whatsoever (a toy car could work even). Next, take a couple "posts" (to the scale of the car of course) pull the rubber band between them. You can probably see where this is going. Pull the car back with the band, and let go. Woo!

The catapult design is crude, it's true, but anything can get you a good grade if you link it with some good explanations. It shows that sometimes the simplest solution is often the best, and believe me. If you do it right, it will go much farther than most other people's fancy contraptions. Unless they do something "Matrixesque" and have a combustion engine or something with a rubberband stuck in their somewhere (The Matrix is powered by humans AND fusion. Which one do you think is actually providing all the power?). In which case they cheated anyway.

It's just an option. You are taking this course, not me, so you probably know what your teacher wants a lot better than I do. You probably even thought of this already, in which case you have also probably ruled it out. But unless you know it won't give you a good grade, than try it and see what happens.

another solution would be to some how attach the rubber band to the car and to one of its wheels axles and to rotate the wheel so that there is tension on the rubberband so that once released, it will spring forward for a while, essentially this is creating a windup toy and itshould work.