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Rotational kinetic energy is given by K = 12Iω2, depending on moment of inertia and angular velocity, not linear velocity directly. As per NCERT, applying relevant law/formula with correct units and sign convention leads to K\=12Iω2. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.
Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.
Moment of inertia measures a body’s resistance to angular acceleration, analogous to mass in linear motion, and depends on mass distribution. As per NCERT, applying relevant law/formula with correct units and sign convention leads to It measures resistance to angular acceleration. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.
Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.
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