A space craft of mass $'M' $ and moving with velocity $ 'v' $ suddenly breaks in two pieces of same mass $m$. After the explosion one of the mass $ 'm'$  becomes stationary. What is the velocity of the other part of craft

  • A

    $\frac{{Mv}}{{M - m}}$

  • B

    $v$

  • C

    $\frac{{Mv}}{m+M}$

  • D

    $\frac{{M - m}}{m}v$

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