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NEET AIPMT SOLVED PAPER MAINS 2010

  • question_answer
    The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is                           

    A)  \[{{60}^{o}}\]

    B)  \[{{15}^{o}}\]                   

    C)  \[{{30}^{o}}\]                   

    D)  \[{{45}^{o}}\]                      

    Correct Answer: A

    Solution :

    The speed of a projectile at its maximum height \[v'={{v}_{0}}\cos \theta \] \[\frac{{{v}_{0}}}{2}={{v}_{0}}\cos \theta \] \[\cos \theta =\frac{1}{2}\] \[\theta ={{60}^{o}}\]


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