What would be the physics behind my rubber band car?

Question

I am building a rubber band car for physics class. We are required to write an essay over it. I put larger wheels in the back, and I have a pulley system, where the rubber band pulls the pulley that uses fishing line to pull the back axle. I am also using bearings to reduce friction. I need help on what to write in my essay for putting larger wheels on the driving, back axle. How would that relate to Physics?

Thanks so much.

Answer 1

why did you put the larger wheels in the back?  Was it for gearing, traction, road handling, or because it looked better?

How fast can your car go?

How far can your car go?

How does adding a payload affect the speed and distance?