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the olympic record for the marathon is 2.00 h 9.00 min 210 s. if the average speed of a runner achieving this record is 5.436 m/s, what is the marathon distance

  • physics -

    D = rate x time

    D = 5.436 m/s x time in seconds

    You have to change 9 minutes to seconds and since there are 60 sec in each minute, you have 540 sec.

    210 s + 540 s + now change 2 hours to seconds.

    that will give you the time you need for the equation.

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