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CMC Medical CMC-Medical VELLORE Solved Paper-2011

  • question_answer
    If the velocity of projection is increased by 1% (other things remaining constant), the horizontal range will increase by

    A)  1 %                                       

    B)  2 %

    C)  4 %                                       

    D)  8 %

    E)  10 %

    Correct Answer: B

    Solution :

                    Since, \[R\propto {{u}^{2}}\Rightarrow R=k{{u}^{2}}\] \[\Rightarrow \]               \[\frac{dR}{R}=2\frac{du}{4}\] \[=2\times 1%=2%\]


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