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a racing car accelerates from rest to 30m/s in 6.0s what is her average acceleration?
the answer in the book is 0.5m/s^2

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girl

  1. Did the car accelerate to 30 miles per second? That is quite a fast car!

    The formula for average acceleration is (change in velocity) divided by (change in time).

    I hope this helps.

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    Leo

  2. you have two ordered pairs of the form (t,v)
    namely (0,0) and (6,30)

    average acceleration = change in velocity / change in time
    = (30-0)/(6-0) (m/s) / s
    = 5 m/s^2

    I suspect a typo in your book

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    Reiny

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