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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

Maximum retardation of M is:

  1. square root of fraction numerator 2 m g h k over denominator M to the power of 2 end exponent end fraction end root    
  2. square root of fraction numerator 2 k g h over denominator M end fraction end root    
  3. square root of fraction numerator 2 k g h over denominator m end fraction end root    
  4. None    

The correct answer is: square root of fraction numerator 2 m g h k over denominator M to the power of 2 end exponent end fraction end root

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