A solid uniform disk of radius and mass is spun up in a laboratory until it reaches a…
PHYSICS · Multi-part · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A solid uniform disk of radius 0.30m and mass 8.0kg is spun up in a laboratory until it reaches a constant angular speed of 15rads−1. Neglect any motion of the disk’s center of mass.
(a) Determine the rotational inertia of the disk about its central axis.
(b) Calculate the rotational kinetic energy of the disk at the given angular speed.