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  3. 9th Class
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  5. Gravitation and Floatation

9th Class Science Gravitation and Floatation Question Bank Gravitation Conceptive Subjective Problems

  • question_answer
    An object is projected upwards with a velocity of \[\text{1}00\,\text{m}{{\text{s}}^{-\text{1}}}\]. In what will it strikes the ground? \[(g=10m/{{s}^{2}})\]

    Answer:

    Time of flight\[t=\frac{2u}{g}=\frac{2\times 100}{10}s=20s\]


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