JEE Main & Advanced Physics Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति Question Bank Elastic and Inelastic Collision

  • question_answer
    A ball is dropped from a height h. If the coefficient of restitution be e, then to what height will it rise after jumping twice from the ground [RPMT 1996; Pb. PET 2001]

    A)          eh/2                               

    B)          2eh

    C)          eh 

    D)          \[{{e}^{4}}h\]

    Correct Answer: D

    Solution :

             \[{{h}_{n}}=h{{e}^{2n}}\], if n = 2 then \[{{h}_{n}}=h{{e}^{4}}\]


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