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Question

A hollow cylinder of mass 2kg and radius 0.8m has an angular momentum of 16kg m2/s. What is its angular velocity?

Options

Choose one · Correct answer highlighted

Explanation

I = MR2 = 2×(0.8)2 = 1.28kg m2. ω = LI = 161.28 = 12.5rad/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 12.5 rad/s. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.