A body of mass $M$ at rest explodes into three pieces, two of which of mass $M/4$ each are thrown off in perpendicular directions with velocities of $3\, m/s$ and $4\, m/s$ respectively. The third piece will be thrown off with a velocity of .......... $m/s$

  • A

    $1.5 $

  • B

    $2.0$

  • C

    $2.5$

  • D

    $3.0$

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