How to build a car powered by elastic bands?

Question

i have a ophisics project due tomoro i nedd help on how to build a car powered by elastic bands

Answer 1

Assuming wood block construction…

Method 1:  Put a nail behind each front wheel, parallel to the axle.  Hook one end of the rubber band there (each side).  Affix the band to the back tire or wheel.

Method 2:  Under the back of the car, where the universal would go, staple down two rubber bands, one leading to the left rear wheel and one to the right.  Affix the bands to the wheels as close as possible to the axle.

Back the car up or otherwise rotate the wheel.  When you release the car or the wheels, the rubber band will take over.

Method 3:  Make a catapult external to the car.

Method 4:  Affix one end of the band to the car, and the other end to the destination.

Method 5:  Put a compressed-gas-type tank on the back end.  Fill the tank with rubber bands.  From the otherwise closed end of the tank, introduce NO₃ and ignite.  (This is basically how Spaceship 1 reached space.)

Answer 2

let me know the details of ur project to help

these are insufficient to answer