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Math Help - Finding maximum velocity?

  1. #1
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    Finding maximum velocity?

    An 830 kg race car turns in a circular path @ 58m/s with out slipping. The radius is 160m. Air flowing over the cars wing exerts a downward force of 11000N on the car.

    I have to find the u(coefficent of friction) between the tires and track.
    I got u=0.91. Does that make sense?

    Now if there is no wing force(no downward force of 11000N) what is the cars maximum velocity before it slides.
    I am not sure where to look at for this, can someone help me out please.
    Do I use a kinematic formula on this?
    THanks
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  2. #2
    A Plied Mathematician
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    Do you know that the circular path is the smallest possible radius such that the race car doesn't slip? Otherwise, I don't know that you could find out the coefficient of friction.
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