RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    A ball is released from height h on the ground level. If the coefficient of restitution is e, then what height will after 2 times jump from ground?

    A)  \[eh/2\]              

    B)  \[2eh\]

    C)  \[eh\]              

    D)  \[{{e}^{4}}h\]

    Correct Answer: D

    Solution :

     The height of ball in first jump\[{{h}_{1}}={{e}^{2}}h\] The height of ball in second jump\[{{h}_{2}}={{e}^{2}}{{h}_{1}}\] \[={{e}^{4}}{{h}_{0}}\]


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