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Two fixed frictionless inclined planes making an angle 30 to the power of ring operator end exponent and 60 to the power of ring operator end exponent with the vertical are shown in the figure. Two blocks A and B are placed on the two planes. What is the relative vertical acceleration of A with respect to B ?

  1. 4.9 m s to the power of negative 2 end exponent in vertical direction    
  2. 4.9 m s to the power of negative 2 end exponentin horizontal direction    
  3. 9.8 m s to the power of negative 2 end exponentin vertical direction    
  4. Zero    

The correct answer is: 4.9 m s to the power of negative 2 end exponent in vertical direction

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