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Homework Help: Static friction, car going around a turn

  1. Sep 26, 2010 #1
    1. The problem statement, all variables and given/known data

    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.

    2. Relevant equations

    3. 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
  2. jcsd
  3. Sep 26, 2010 #2


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    Homework Helper

    Well your static friction would provide the centripetal force.

    Ffriction = μmg

    Fcentripetal = mv2/r
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