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

  • question_answer
    A body is projected vertically upwards with a velocity of 19.6 m/s. What is the total time for which the body will remain in the air? \[(g=9.8\,\,m/{{s}^{2}})\]

    Answer:

    \[u=19.6\,m/s\] \[g=9.8\,\,m/{{s}^{2}}\] Time of flight (T = ?) Time of flight\[(T)=\frac{2u}{g}=\frac{2\times 19.6}{9.8}=4s\]


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