Physics-
General
Easy

Question

An endless inextensible string passes over two small smooth pegs A and B, AB being horizontal, two particles of mass M and m (M > m) are attached to the string. The particle of mass m is released when it is in level with the pegs. As it comes down M rises up vertically. If and when they cross each other

  1. the speed of M > the speed of m    
  2. the speed of M = the speed of m    
  3. the speed of M < the speed of m    
  4. the ratio of their speeds is fraction numerator M over denominator m end fraction    

The correct answer is: the speed of M = the speed of m

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