Recent content by anchonee

  1. anchonee

    Finding the product moment of inertia of this cylinder

    perfect. thank you!
  2. anchonee

    Finding the product moment of inertia of this cylinder

    So how would it change what I did in the above methodology?
  3. anchonee

    Finding the product moment of inertia of this cylinder

    Okay let's say for example I take it from point O. ωx = ωi ωy = pj ωz = 0k Therefore you would have the following for Ho: Ho = (-Ixx - Iyx - Izx)ωx i + (-Ixy + Iyy - Izy)ωy j From point O, Ixoxo = IG + md2 (parallel axis theorem) = (1/4)mr2 + (1/3)mb2 + mh2 Due to symmetry, Iyozo = Izoxo = 0...
  4. anchonee

    Finding the product moment of inertia of this cylinder

    Thanks for your reply. I have tried the question by taking the angular momentum from the centre of mass, then using the parallel axis theorem. e.g. I used Ho = Hg + (r x G) That works perfectly fine, the answer was correct. But why is it not the case when I try to take it from point O?
  5. anchonee

    Finding the product moment of inertia of this cylinder

    So the following question is attached (There is another thread with the same question but no solution to what I am asking on there) Now according to several solutions, apparently IYZ is equal to 0, and they reason this by saying that the geometry is symmetrical. However when looking at the...
  6. anchonee

    Angular momentum of a solid cylinder rotating around axis

    Why is Iyz = 0? When looking at the YZ plane the geometry is not symmetrical about either axis?
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