A man stands at center of a rotating platform with hands extended (I_initial). He brings hands closer to body (I becomes I/2). Final angular velocity:
Aomega_initial²
Bomega_initial / 2
Comega_initial
D2 omega_initial (L conserved)
Answer & Solution
Correct answer: D. 2 omega_initial (L conserved)
L = I omega conserved → I × omega = (I/2) × omega_new → omega_new = 2 omega. Similar to skater spinning faster when arms are pulled in.
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