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## Homework Statement

In Figure 6-58, a stuntman drives a car (without negative lift) over the top of a hill, the cross section of which can be approximated by a circle of radius R = 211 m. What is the greatest speed at which he can drive without the car leaving the road at the top of the hill?

## Homework Equations

Ac = mv^2/R

fnet = ma

## The Attempt at a Solution

I honestly have no idea how to tackle this problem. Help?