AMU Medical AMU Solved Paper-2011

  • question_answer
    An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy eq. Its potential energy is

    A) \[-{{E}_{o}}\]                                    

    B)  \[{{E}_{o}}\]

    C) \[-2{{E}_{o}}\]                                  

    D)  \[2{{E}_{o}}\]

    Correct Answer: D

    Solution :

                     Potential energy \[U=\frac{-GMm}{r}\]                 and Total energy \[{{E}_{0}}=\frac{-GMm}{2r}\]                 Potential energy = 2 \[\times \] (Total energy) \[=2{{E}_{0}}\]


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