Physics-
General
Easy

Question

A small block of mass m is placed on a wedge of mass M as shown, which is initially at rest. All the surfaces are frictionless . The spring attached to the other end of wedge has force constant k. If a' is the acceleration of m relative to the wedge as it starts coming down and A is the acceleration acquired by the wedge as the block starts coming down, then

  1. fraction numerator a to the power of ' end exponent over denominator square root of 2 end fraction less than A less than a to the power of ' end exponent2<A<a''/>    
  2. A less than fraction numerator a to the power of ' end exponent over denominator square root of 2 end fraction2'/>    
  3. A greater than a to the power of ' end exponent'/>    
  4. None    

The correct answer is: A less than fraction numerator a to the power of ´ end exponent over denominator square root of 2 end fraction

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