CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2011

  • question_answer
    A ball dropped from a height of 2 m rebounds to a height of 1.5 m after hitting the ground. Then the percentage of energy lost is

    A)  25                                         

    B)  30                         

    C)  50                         

    D)         100

    E)  200

    Correct Answer: A

    Solution :

    Percentage energy loss \[=\frac{mg(2-1.5)}{mg.2}\times 100\] \[=25%\]


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