What condition indicates that a rigid body is not rotating?
A rigid body is not rotating if its angular velocity is zero (ω = 0), meaning there’s no change in angular position over time. As per NCERT, applying relevant law/formula with correct units and sign convention leads to Angular velocity is zero. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.
Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.