A block of mass $M$ is pulled along a horizontal frictionless surface by a rope of mass $m$. If a force $P$ is applied at the free end of the rope, the force exerted by the rope on the block will be

  • [AIEEE 2003]
  • A

    $P$

  • B

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

  • C

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

  • D

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

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