C: Mechanics · Unit 5: Rotation
Rotating Disk and Angular Momentum
A uniform disk (M = 4.0 kg, R = 0.50 m) rotates freely at ω₀ = 6.0 rad/s. I_disk = ½MR².
(a)2 points
Calculate the moment of inertia.
(b)2 points
Calculate the initial angular momentum.
(c)3 points
A 1.0 kg ring (I = mR²) is dropped on the edge. Find the new angular speed.