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    Question

    A car moving at 15 m/s noticed another car ahead moving

    at 9 m/s and accelerated to catch it. If the distance between them was 180 metres, find the time required to catch the slower car.
    A 20 seconds Correct Answer Incorrect Answer
    B 25 seconds Correct Answer Incorrect Answer
    C 30 seconds Correct Answer Incorrect Answer
    D 35 seconds Correct Answer Incorrect Answer

    Solution

    Relative speed of faster car w.r.t slower car = 15 тИТ 9 = 6 m/s

    So, required time = 180 ├╖ 6 = 30 seconds

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