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I Moment of inertia of cylinder with a rectangel shaped hole

  1. Apr 26, 2017 #1
    i know how to calculate the inersia for the cylinder, than i have to take away the inersia of the rectangel, but i cant find an equation for the inersia for a rectangel with the plane spinning perpendicular to the rotation axis, please help !!!! fisyk.PNG
  2. jcsd
  3. Apr 26, 2017 #2


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    Which axis do you want?
    Does this wiki page help? Have you looked anywhere else for this info?
  4. Apr 26, 2017 #3
    dont think so, they give me the equation for the inersia about the x and y axis, in my case the axis pierces the plane of the rectangel.
  5. Apr 26, 2017 #4


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    Last edited: Apr 26, 2017
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