To make a co2 car go faster, make the body streamlined. Keep the weight down and make sure that the axles are smooth.
Yes it is, but the car will still go faster but it will end up breaking if you're not careful.
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Either will make your car faster.
There's no such thing as a CO2 car, unless you mean a CO2 emitting car, which would be a gasoline, or other fossil fuel such as diesel or bio diesel.
why does Co2 diffuse faster than So2
no slower because it is lower pressure
Have a light weight body and make sure that all angles are curved so that it is aerodynamic. Spoilers only add drag, even if they look cool, and although less weight may make it go faster, it will also make it more fragile.
to make it heavy
use c02
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You would apply force to the accelerator to make the car go faster.
make it less weight