Practice question

MCQ

Question

A hollow cylinder of mass 4kg and radius 0.6m rolls without slipping with a linear speed of 3m/s. What is its angular velocity?

Options

Choose one · Correct answer highlighted

4 rad/s 5 rad/s Correct 6 rad/s 7 rad/s

Explanation

v = ωr. v = 3m/s, r = 0.6m. ω = vr = 30.6 = 5rad/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 5 rad/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

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