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Practice question

MCQ

Question

A particle in a rigid body rotates at a distance of 0.7m from a fixed axis with an angular velocity of 6rad/s. What is its linear speed?

Options

Choose one · Correct answer highlighted

Explanation

v = ωr. ω = 6rad/s, r = 0.7m. v = 6×0.7 = 4.2m/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 4.2 m/s. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

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