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Homework Help: Mass on turntable

  1. Nov 7, 2004 #1
    [FONT=Times New Roman]I need help with this one problem:
    A small metal cylinder rests on near the edge of a circular turntable that is rotating at a constant speed. The small metal cylinder has a mass of 0.20 kg, the coefficient of static friction between the cylinder and the turntable is 0.080, and the cylinder is located 0.15 m from the center of the turntable.
    What is the maximum speed that the cylinder can move along its circular path without slipping off the turntable?[/FONT]
  2. jcsd
  3. Nov 7, 2004 #2
    Centrifugal force = Force due to static friction
    Centrifugal force = mass*omega^2*radius
    Static Force = normal force * mju
    normal force = weight
    mju = 0.080
    equate for omega
  4. Nov 7, 2004 #3


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    Static friction must provide the centripetal acceleration of the cylinder.
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