Static friction, car going around a turn

[mmiller9913]

Homework Statement

Suppose the coefficient of static friction between the road and the tires on a car is .60 and the car has no negative lift. What speed will put the car on the verge of sliding as it rounds a level curve 30.5m in radius.

Homework Equations

A=V^2/R
F=MV^2/R

The Attempt at a Solution

I've stared at this problem and have absolutely no idea where to start. You can't find the static friction since you don't know the normal force. You can't really use any of the centirpital motion equations since you don't have enough values for the variables

 

[rock.freak667]

Well your static friction would provide the centripetal force.

F_friction = μmg

F_centripetal = mv²/r