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 ...... $m/s^2$ 

  • A

    $9.8$

  • B

    $4.73$

  • C

    $2.16$

  • D

    $1.96$

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