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physics

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Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a car can safely travel if the radius of the track is 82.0 m and the coefficient of friction is 0.39?

  • physics -

    You must be refering to the coefficient of STATIC friction, Us, which determines the force at which slipping begins.

    Solve this equation for Vmax:

    M*Vmax^2/R = M*g*Us

    Note that the mass M cancels out.

    Vmax = sqrt(g*Us*R)

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