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v = ωr. ω = 12rad/s, r = 0.25m. v = 12×0.25 = 3m/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 3.0 m/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.
Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.
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.
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