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19 February, 12:17

A runner begins running at the beginning of 7th period and stops running at the end of the period. She runs at a pace of 10 km/hr and travels 9.2 km. How long did she run

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  1. 19 February, 12:57
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    She run for, t = 0.92 s

    Explanation:

    Given data,

    The velocity of the runner, v = 10 km/h

    The distance covered by the runner, d = 9.2 km

    The relationship between the velocity, displacement and time is given by the formula,

    t = d / v

    Substituting the given values in the above equation,

    t = 9.2 / 10

    = 0.92 s

    Hence, she ran for, t = 0.92 s
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