1. The problem statement, all variables and given/known data A string is wrapped around a uniform disk of mass M = 2.5 kg and radius R = 0.04 m. Attached to the disk are four low-mass rods of radius b = 0.09 m, each with a small mass m = 0.6 kg at the end in an "x" configuration through the center of the disc. What is the moment of inertia for the object? 2. Relevant equations I for small masses = r1^2(m1) + (r2^2)m2)...etc I for disk = (1/2)MR^2 3. The attempt at a solution This is only part of a problem I'm doing. I feel as though the total I should be equal to the I of the disk + the I of the masses, which would mean the equation is "I = .5MR^2 + 4(mb^2)" but this is not giving me the correct answer. Any ideas?