Physics-
General
Easy

Question

Equal force F (> mg) is applied to string in all the 3 cases. Starting from rest, the point of application of force moves a distance of 2 m down in all cases. In which case the block has maximum kinetic energy?
1) 
2) 
3) 

  1. 1    
  2. 2    
  3. 3    
  4. equal in all 3 cases    

The correct answer is: 3

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