1. The problem statement, all variables and given/known data A uniform metal disk (M = 9.81 kg, R = 8.99 m) is free to oscillate as a physical pendulum about an axis through the edge. Find T, the period for small oscillations. 2. Relevant equations I (uniform disk, with axis through center of mass) = (1/2)MR^2 T = 2π√(I/mgd), where d = distance from center of mass to point of rotation (axis) I (uniform disk, with axis through the edge = (3/2)MR^2, after using Parallel Axis Theorem: I (center of mass) + Md^2, where d = RADIUS of the disk: 3. The attempt at a solution Plugging in for T, we have 2π√(I/(9.81)(9.81)(8.99). After plugging in I = (3/2)*(9.88)*(8.99)^2, we can plug and chug away: T = 3.2 seconds, however, this was incorrect. I was wondering where I went wrong here, thanks again !