Dear friends, I'm having trouble with this problem, I don't know if I'm doing it right, I'd be grateful if you could advice me. Two discs, each of mass M and radius R, are supported with equal separation along a slender rod to which they are rigidly fastened at their centers as shown in the picture I attached below. I need to calculate the normal frequencies and normal modes. This is what I've done: T(kinetic energy)=1/2*1/2MR^2(theta1^2+theta2^2) V(potential)=1/2*k(theta1^2+theta2^2+(theta1-theta2)^2 Where theta is the angle the disc turns. Does this make sense? THanks!