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  5. Time and Motion

9th Class Science Time and Motion Question Bank Motion

  • question_answer
    If a body is thrown up with an initial velocity u and covers a maximum height of A, then h is equal to

    A)  \[\frac{{{u}^{2}}}{2g}\]                                  

    B)  \[\frac{u}{2g}\]

    C)  \[2{{u}^{2}}g\]                                

    D)  none of these

    Correct Answer: A

    Solution :

     From\[~{{v}^{2}}={{u}^{2}}=2as\] \[\therefore \]      \[0={{u}^{2}}-2gh\] \[\Rightarrow \]   \[h=\frac{{{u}^{2}}}{2g}\]


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