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  5. Gravitation and Floatation

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

  • question_answer
    A stone is thrown vertically upwards with an initial velocity of \[\text{30 m}{{\text{s}}^{-1}}.\] What is the time taken for the stone to reach its maximum height?

    Answer:

    Time of ascent\[(t)=\frac{u}{g}=t\frac{3}{9.8}s=3.06\,s\]


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