PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
For a rigid object of fixed shape, about which of the following axes will its rotational inertia be the smallest?
(a) An axis parallel to the first axis but shifted so it just grazes the outer edge of the object
(b) An axis that passes through the object’s center of mass and is perpendicular to the plane of the object
(c) An axis that passes through the object’s center of mass and lies in the plane of the object
(d) All three axes give the same rotational inertia because the mass of the object is unchanged