Given the following system, where the disk has a mass moment of inertia JmR2 /2, and rolls without slipping (x-RO), XRO a) Write the differential equation of motion in terms of Sand R4 points) If Ja 0.2 kg m, k-1000 N/m. c-100N s/m and R-0.2 m. b) From the equation of motion you find in (a), . What is the natural frequency of the system, c (2 points) . What is the damping ratio, . What is the damped natural frequency, a,... (2 points) .(1 point) 8 D mmmmmmmmmm mill