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Question

A solid cylinder of mass 3kg and radius 0.4m has an angular momentum of 12kg m2/s. What is its angular velocity?

Options

Choose one · Correct answer highlighted

Explanation

I = 12MR2 = 12×3×(0.4)2 = 0.24kg m2. ω = LI = 120.24 = 50rad/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 50 rad/s. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.