A body of mass $0.5 \,kg$ is projected under gravity with a speed of $98 \,m/s$ at an angle of ${30^o}$ with the horizontal. The change in momentum (in magnitude) of the body is ......... $N-s$

  • A

    $24.5$

  • B

    $49$

  • C

    $98$

  • D

    $50$

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