Physics-
General
Easy

Question

Two persons of mass m1 and m2 are standing at the two ends A and B respectively, of a trolley of mass M as shown.

Choose the incorrect statement, if m1 = m2 = m and both the persons jump one by one, then

  1. the centre of mass of the system remains stationary    
  2. the final velocity of the trolley is in the direction of the person who jumps first    
  3. the final velocity of the trolley is open parentheses fraction numerator m u subscript r e l end subscript over denominator M plus m end fraction minus fraction numerator m u subscript r e l end subscript over denominator M plus 2 m end fraction close parentheses    
  4. none of these    

The correct answer is: none of these

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