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  3. 9th Class
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  5. Time and Motion

9th Class Science Time and Motion Question Bank Motion

  • question_answer
    Figure shows the x-t plot of a particle in one-dimensional motion. Two different equal intervals of time are shown. \[Let\,\,{{v}_{1}}\]and \[{{v}_{2}}\] be average speeds in time intervals 1 and 2 respectively. Then

    A) \[{{v}_{1}}>{{v}_{2}}\]                

    B) \[{{v}_{2}}>{{v}_{1}}\]    

    C) \[{{v}_{1}}={{v}_{2}}\]    

    D)        Data is insufficient

    Correct Answer: A

    Solution :

    We know, slope of distance-time graph gives speed. In time interval 1, slope is more as compared to the slope in time interval 2. \[\therefore {{v}_{1}}>{{v}_{2}}\]


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