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30 July, 11:07

The winner of a race ran the distance in 45s at an average speed of 9.6 m/s. The runner who came in last finished and 48 seconds. What was the last runners average speed?

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  1. 30 July, 11:34
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    The answer to your question is speed = 9 m/s

    Step-by-step explanation:

    Data

    Winner Last runner

    time = 45 s time = 48 s

    speed = 9.6 m/s

    Process

    1) Calculate the distance they ran using the data of the winner

    speed = distance / time

    -Solve for distance

    distance = speed x time

    -Substitution

    distance = (9.6) (45)

    -Result

    distance = 432 m

    2. - Calculate the speed of the last runner

    -Substitution

    speed = 432/48

    -Result

    speed = 9 m/s
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