A block of mass $M = 5\,kg$ 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  ........ $m/\sec^2$ $(g = 10\,\,m/{\sec^2})$
  • A$5.73$
  • B$8.0$
  • C$3.17$
  • D$10.0$
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