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Physics URGENT HELP

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An athlete is training and is required to perform shuttle runs. From the starting position they sprint out to 10m (this takes 2 seconds).

Where would the maximum acceleration occur? Justify your answer.

Please help! Thankyou.

  • Physics URGENT HELP -

    10 = (1/2) a t^2

    20 = a (4)

    a = 5 m/s^2

  • Physics URGENT HELP -

    Thankyou, but I need to establish where within the run max acceleration occurs (what metre mark?)

  • Physics URGENT HELP -

    I suspect if they turn around at the end, the max acceleration occurs there.

  • Physics URGENT HELP -

    I think I know what you were looking for. Starting off where Damon left off,


    Max acceleration occurs when the velocity=acceleration.

    Vi=0m/s^2
    Vf=5m/s and
    a=5m/s^2
    d=?

    Solve for d.

    Vf^2=Vi^2+2ad

    (5m/s)^2=0+2(5m/s^2)d

    25=10d
    25/10=d

    d=2.5m

    The runner establishes max acceleration at the 2.5m mark in the race.


    Hope I helped in time.

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