9th Class Science Time and Motion Question Bank Motion Formative Subjective Problems

  • question_answer
    An object moves with an acceleration of \[8m{{s}^{-2}}\], starting from rest. Find the distance travelled in one second.

    Answer:

    Given,\[u=0,\,\,a=8m{{s}^{-2}},\,\,\,t=1s\] \[\therefore S=ut+\frac{1}{2}a{{t}^{2}}\] \[=0\times 1+\frac{1}{2}\times 8\times {{(1)}^{2}}=4m\]


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