Physics-
General
Easy

Question

A bead can slide on a smooth straight wire and a particle of mass m attached to the bead by a light string of length L. The particle is held in contact with the wire and with the string taut and is then let fall. If the bead has mass 2m then when the string makes an angle q with the wire, the bead will have slipped a distance

  1. L (1– cos theta)    
  2. (L/2) (1– cos theta)    
  3. (L/3) (1– cos theta)    
  4. (L/6)(1 – cos theta)    

The correct answer is: L (1– cos theta)

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