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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.
Linear velocity v = ωr increases with distance r from the axis because angular velocity ω is constant for a rigid body, and v is directly proportional to r. As per NCERT, applying relevant law/formula with correct units and sign convention leads to It increases. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.
Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.
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