A block of mass $50 \,kg$ can slide on a rough horizontal surface. The coefficient of friction between the block and the surface is $0.6$. The least force of pull acting at an angle of $30^°$ to the upward drawn vertical which causes the block to just slide is ........ $N$

  • A

    $29.43$

  • B

    $219.6$

  • C

    $21.96$

  • D

    $294.3$

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  • [KVPY 2009]

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