NEET Physics · Medium

System of Particles & Rotational Motion: Angular Momentum Mixed MCQ

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Angular Momentum MixedMediumQuestion 6198

Question

A child on merry-go-round (I₁=500 kg·m², ω=2 rad/s) walks to edge, increasing I to 600 kg·m². New ω:
  1. A
    2.4 rad/s
  2. B
    1.67 rad/s
    Correct
  3. C
    2 rad/s
  4. D
    1.2 rad/s

Correct answer

1.67 rad/s

Explanation

L = 500×2 = 1000. ω = 1000/600 ≈ 1.67 rad/s.