If a gymnast sitting on a rotating stool, with his arms outstretched suddenly lowers his arm

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Harikesh

🎓 Tutor III ⭐ 8.04K Points

📊 Applied Mechanics

Q. If a gymnast sitting on a rotating stool, with his arms outstretched suddenly lowers his arm

(A) the angular velocity will remain constant
(B) the angular momentum will increase
(C) the angular velocity will decrease
(D) his moment of inertia will decrease

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✅ Correct Answer: (D) his moment of inertia will decrease

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