1. The problem statement, all variables and given/known data A rod of length L is attached to a ball of radius L/6 A spring is attached to a wall, and to the vertical rod 1/3 down the top (opposite the ball). THe rod is displaced a small theta, and released. Find period of oscillation. 2. Relevant equations T = 2pi sqrt(I/mgd) 3. The attempt at a solution I found the moment of inertia of the system. (Im confident on this). I have no idea where to go from here. I don't see how you can factor in the spring.