JEE Main & Advanced Physics Two Dimensional Motion Sample Paper Topic Test - Two Dimensional Motion

  • question_answer
    A ball is projected with kinetic energy \[E\]at an angle of \[{{45}^{o}}\] to the horizontal. At the highest point during its flight, its kinetic energy will be

    A) Zero     

    B) \[\frac{E}{2}\]

    C) \[\frac{E}{\sqrt{2}}\]

    D) \[E\]

    Correct Answer: B

    Solution :

    [b] \[E'=E{{\cos }^{2}}\theta =E{{\cos }^{2}}(45{}^\circ )=\frac{E}{2}\]

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