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JEE Main & Advanced AIEEE Solved Paper-2007

  • question_answer
    A particle is projected at\[T=2s\]to the horizontal with a kinetic energy K. The kinetic energy at the highest point is       AIEEE  Solved  Paper-2007

    A)  K                                           

    B)         zero                     

    C)         K/4                       

    D)         K/2

    Correct Answer: C

    Solution :

    The horizontal component of velocity in projectile motion is always constant, since there is no acceleration in this direction. The KE of projectile of point of projection is \[\frac{a}{2}\] Kinetic energy at highest point \[2a\]                 \[\frac{1}{4}\]                 \[\frac{1}{2}\]


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