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Homework Help: Moment of inertia - displaced axis

  1. Apr 12, 2012 #1

    I need some help, I have a system with 3 cylinders (I got the center of mass for the system). Now I need to calculate the moment of inertia for the system.

    I have tried to find some examples or general information, but they all show when the axis either is centered within the object or on the surface. This problem has a distance from the system and is not "touching" any surfaces. I figured out distance from the center of mass too the revolving axis. But I cant get my head around how I can solve this with the "displaced" axis so to speak.

    Greatfull for every answer,

  2. jcsd
  3. Apr 12, 2012 #2

    Filip Larsen

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    Gold Member

  4. Apr 17, 2012 #3
    That did the trick;)
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