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A thin circular ring of mass M and radius r is rotating about its axis with a constant angular velocity ω. Two objects each of mass ‘m’ are attached gently to the opposite ends of a diameter of the ring. The ring will now rotate with an angular velocity –
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A thin circular ring of mass M and radius r is rotating about its axis...
By conservation of angular momentum
I’ω’ = Iω
(M + 2m) r2ω’ = Mr2ω
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Most Upvoted Answer
A thin circular ring of mass M and radius r is rotating about its axis...
By conservation of angular momentum
I’ω’ = Iω
(M + 2m) r2ω’ = Mr2ω
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A thin circular ring of mass M and radius r is rotating about its axis with a constant angular velocity ω. Two objects each of mass ‘m’ are attached gently to the opposite ends of a diameter of the ring. The ring will now rotate with an angular velocity –a)b)c)d)Correct answer is option 'B'. Can you explain this answer?
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