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Brad Cohen asked the Naked Scientists: Hi,I have a question that's been bugging me since high school physics class - which my teacher couldn't answer. We were learning that friction was a function of area of contact and force upon that area (can't remember if I'm getting this right), so that a smaller area of contact had greater force per square inch, and equal friction. This made me wonder why the wheels for Formula 1 cars were so big if friction was equal regardless of area of contact?Is this just because if they were normal tires, the extreme torque and friction would blow them up? Or is there a physics explanation as well.Thanks,BradWhat do you think?