Physics-
General
Easy

Question

In the given figure the wedge is fixed, pulley is frictionless and string is light. Surface AB is frictionless whereas AC is rough. if the block of mass 3 m slides down with constant velocity, then the coefficient of friction between surface AC and the block is :

  1. 1/3    
  2. 2/3    
  3. 1/2    
  4. 4/3    

The correct answer is: 2/3

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