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Question

A 2kg mass rotates in a circle of radius 0.4m with a speed of 6m/s. What is its angular momentum about the center?

Options

Choose one · Correct answer highlighted

Explanation

L = mvr. m = 2kg, v = 6m/s, r = 0.4m. L = 2×6×0.4 = 4.8kg m2/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 4.8 kg m²/s. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.