Question: In Figure, for torsional motion, complete the following tasks:
(a) Select coordinates, draw a free-body diagram for each disk, and develop the equations of motion.
(b) State the equations of motion in matrix form.
![54_5.71.png](https://secure.tutorsglobe.com/CMSImages/54_5.71.png)
c) Determine the eigenvalues, natural frequencies, and eigenvectors given the following data: M1 = 200 kg, r1 = 200 mm, L = 3000 mm, G = 90 MPa, d = 75 mm, M2 = 200 kg, and r2 = 200 mm.