Circular motion !! If you can help--it will be much appreciated!?

  • 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 76.0 m and the coefficient of friction is 0.44?

    How would I go about solving this?
    The equations that I have learned so far about circular motion are:
    centripetal acceleration= (v^2)/(radius)
    force= mass x centripetal acceleration
    force= (mass x v^2)/(radius)


  • for it to travel safely in a circle, the friction force provides all the centripetal force

    (0.44)(m)(g)=(m)(v^2)/(r)
    and solve!







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