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Moment of Inertia

  1. Oct 15, 2004 #1
    What is the Moment of inertia of a uniform cone about the axis joining the center of its base and its apex.
    Iis it 3/10*(M*R^2) where M is the mass of the cone and R the radius of the base of the cone?
  2. jcsd
  3. Oct 15, 2004 #2


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    That's correct.

    It's not hard to figure out, if you know some calculus :

    [tex] I_z = 2\pi\rho \int _0 ^h \int _0 ^{R(h-z)/h} r^2*r*dr*dz = \frac {3}{10}MR^2[/tex]
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