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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 77.0 m and the coefficient of friction is 0.36?

  • Physics -

    For a flat track, equate the maximum friction force to the required centripetal force.

    0.36 M g = M V^2/R

    The M's cancel. Solve for V

    The friction coefficient you are using is the static one, since the tires (although rolling) are not skidding.

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