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NEET · Physics · STD 11 - 6. system of particles and rotational motion

A thin uniform rod of mass \(M\) and length \( L\) is rotating about a perpendicular axis passing through its centre with a constant angular velocity \(\omega\). Two objects each of mass \(\frac{ M }{3}\) are attached gently to the two ends of the rod. The rod will now rotate with an angular velocity of

  1. A \(\frac{1}{7}\omega \)
  2. B \(\;\frac{1}{6}\omega \)
  3. C \(\;\frac{1}{2}\omega \)
  4. D \(\;\frac{1}{3}\omega \)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\;\frac{1}{3}\omega \)

Step-by-step Solution

Detailed explanation

Initial angular momentum \(L _{1}= I \omega\)