A spring-mass system vibrates such that mass travel on surface of coefficient of friction  $\mu$. Mass is released after compressing the spring by distance a and it travels upto  distance $b$ after its equilibrium position, then travelling from $x = -a$ to $x = b$ the reduction in its amplitude will be :-

  • A

    $\frac{\mu mg}{K}$

  • B

    $\frac{2 \mu mg}{K}$

  • C

    $\frac{\mu g}{K}$

  • D

    $\frac{k}{\mu mg}$

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