A body of mass 2 Kg is moving on the ground comes to rest after some time. The coefficient of kinetic friction between the body and the ground is 0.2. The retardation in the body is

Options :
  1. 9.8 m / sq. sec
  2. 4.73 m / sq. sec
  3. 2.16 m / sq. sec
  4. 1.96 m / sq. sec
Answer and Explanation :-

Answer: Option 4


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