Physics-
General
Easy

Question

A small bead of mass m moving with velocity v gets threaded on a stationary semicircular ring of mass m and radius R kept on a horizontal table. The ring can freely rotate about its centre. The bead comes to rest relative to the ring. What will be the final angular velocity of the system?

  1. v/R    
  2. 2v/R    
  3. v/2R    
  4. 3v/R    

The correct answer is: v/2R

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