A solid cylinder of mass and radius originally rotates about its central axis
PHYSICS · Subjective · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A solid cylinder of mass 2.0kg and radius 0.10m originally rotates about its central axis. A narrow cylindrical core of radius 0.020m is drilled out along this axis, removing 0.10kg of material. Without performing a detailed calculation, state whether the rotational inertia of the cylinder about the same axis increases, decreases, or remains unchanged, and briefly explain your choice in one sentence.