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Question

A block of mass M = 5kg is resting on a rough horizontal surface for which the coefficient of friction is 0.2. When a force F = 40 N is applied, the acceleration of the block will be (g = 10 m/s2):

  1. 5.73 m/s2    
  2. 8.0 m/s2    
  3. 3.17 m/s2    
  4. 10.0 m/s2    

The correct answer is: 5.73 m/s2

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