A point mass is initially located a distance from a fixed axis
PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A point mass is initially located a distance r from a fixed axis. If its mass is doubled while its distance from the axis is simultaneously halved, which statement best describes how its rotational inertia changes?
(a) It becomes one-quarter of its original value.
(b) It remains unchanged.
(c) It becomes one-half of its original value.
(d) It doubles.