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Manipal Engineering Manipal Engineering Solved Paper-2011

  • question_answer
    A metre scale is standing vertically on the earths surface on one of its end. It now falls on earth without slipping. Find the velocity with which the free end of the scale strikes the earth. \[(g=10\,m/{{s}^{2}})\]

    A)  9.8 m/s                               

    B)  5.47 m/s

    C)  4.5 m/s               

    D)         1 m/s

    Correct Answer: B

    Solution :

    Velocity of free end                 \[V=\sqrt{3gh}\]                    \[=\sqrt{3\times 10\times 1}\]                    \[=5.47\,\,m/s\]


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