In the figure, mass of a ball is $\frac{9}{5}$ times mass of the rod. Length of rod is $1 \,m$. The level of ball is same as rod level. Find out time taken by the ball to reach at upper end of rod. (in $S$)

981-373

  • [AIIMS 2018]
  • A

    $1.4$

  • B

    $2.45$

  • C

    $3.25$

  • D

    $5$

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