Find the moment of inertia of a uniform disk about axis through its center and perpendicular to the plane of the disk solution dm o 2n rdr J=∫rdm=2mo∫r J=2ra"rdr πoR41 2Find the moment of inertia of a uniform disk about axis through its center and perpendicular to the plane of the disk solution： o r dr R dm  2 rdr  J  r dm2   r dr 3 2    R J r dr 0 3 2  2 4 2 1 2 mR R    