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  3. 9th Class
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  5. Time and Motion

9th Class Science Time and Motion Question Bank Case Based MCQs - Motion

  • question_answer
    At which time the train is travelling at its highest speed?

    A) 10:00 - 10:30

    B) 10:30 - 10:40

    C) 10:40 - 11:00                            

    D) 11:15 - 11:30

    Correct Answer: A

    Solution :

    [a] We know that,
    speed = slope of distance-time graph.
    The greater the slope, greater is the speed.
    From the graph, it is clear that slope of distance time graph is maximum between 10:00 am to 10:30 am, so the train is travelling at the highest speed during this interval of time.
     


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