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JEE Main & Advanced Physics Two Dimensional Motion JEE PYQ - Two Dimensional Relative Motion

  • 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 2007]

    A) K

    B) zero

    C) K/4

    D) K/2

    Correct Answer: C

    Solution :

    [c] 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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