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Homework Help: Cylinder attatched to wall

  1. Oct 25, 2007 #1
    1. The problem statement, all variables and given/known data

    M, a solid cylinder (M=1.67 kg, R=0.137 m) pivots on a thin, fixed, frictionless bearing. A string wrapped around the cylinder pulls downward with a force F which equals the weight of a 0.670 kg mass, i.e., F = 6.573 N. Calculate the angular acceleration of the cylinder.

    2. Relevant equations

    F*R ?
    ang accel. = alpha*R

    3. The attempt at a solution

    I multiplied Force*Radius, cause someone told me to start with that, but I'm not sure what to do next?
  2. jcsd
  3. Oct 26, 2007 #2


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    Homework Helper

    F*R = Torque = I*alpha. where I is the moment of inertia of the solid cylinder=MR^2/2
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