Physics-
General
Easy

Question

A bag of sand of mass m is suspended hy rope. A bullet of mass m/30 is fired at it with a velocity v and gets embedded into it . The velocity of the bag finally is

  1. fraction numerator 31 v over denominator 30 end fraction    
  2. fraction numerator 30 v over denominator 31 end fraction    
  3. fraction numerator v over denominator 31 end fraction    
  4. v divided by 30    

The correct answer is: fraction numerator v over denominator 31 end fraction

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