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Circular Motion and {forces causing} Centripetal Forces acceleration

Parker, Barry.  “The Isaac Newton School of Driving.”

Campus Photography © 2004
Permission received from Rob Hawkins

If we assume the car is a point particle and it is moving on a circular path with radius r with uniform speed v we can say the acceleration is centripetal acceleration because the forces are directed inward so the acceleration is as well.

a = v^2 / r

If the forces holding these racecar's in a circular line around this track were to disappear every one of them would be aimed at a wall.