Physics-
General
Easy

Question

A boy of mass M is applying a horizontal force to slide a box of mass M1 on a rough horizontal surface The coefficient of friction between the shoes of the boy and the floor is μ and that between the box and the floor is μ1 In which of the following cases it is certainly not possible to slide the box?

  1. mu less than mu to the power of 1 end exponent comma M less than M to the power of 1 end exponent    
  2. mu greater than mu to the power of 1 end exponent comma M less than M to the power of 1 end exponent    
  3. mu less than mu to the power of 1 end exponent comma M greater than M to the power of 1 end exponent    
  4. mu greater than mu to the power of 1 end exponent comma M greater than M to the power of 1 end exponent    

The correct answer is: mu less than mu to the power of 1 end exponent comma M less than M to the power of 1 end exponent

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