Recent content by antonov

  1. antonov

    Moment of inertia composite body

    We get that the total mass is m.
  2. antonov

    Moment of inertia composite body

    About A2 yes it's supposed to be the semicircle. Area of semicircle A=(pi*r^2)/2 The radius is 2L. A3 is a mistake from my part I saw yesterday total area should be 13.1415926 I divide it so we get the mass och the plate. And then multiply the mass from each area to the I of the same area. Or at...
  3. antonov

    Moment of inertia composite body

    I got it from this table of MOI we got from our teacher. I was torn because this is 3D and my model is 2D but yeh.
  4. antonov

    Moment of inertia composite body

    I don't really know how to break it down, this is the way we learned it. And then looking up the formulas for MOI in a formula collection.
  5. antonov

    Moment of inertia composite body

    I have this moment of inertia problem and is a little confused on the semicircle part and if the rest is really right? I get over 10 if I calculate it in crew CAD but by hand I get 7,568032142. What is right and what am I doing wrong?
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