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Homework Help: Uniformly accelerated motion

  1. Jul 18, 2010 #1
    1. The problem statement, all variables and given/known data

    A plane starts from rest and accelerates in a straight line along the ground before takeoff. It moves 600m in 12s. Find a) acceleration, b) speed at the end of 12s, c) the distance moved during the twelfth second.

    2. Relevant equations
    d = vot + 1/2at^2

    v = vot + at

    3. The attempt at a solution

    I got the answers to part a and b, but not to part c. I feel stupid, I've been staring at this part for awhile. Things are not registering...:frown:

    Do i use the first equation?

    someone please help!
  2. jcsd
  3. Jul 19, 2010 #2


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    Homework Helper

    This is the distance travelled during one second between t1=11 s and t2=12 s time. You can use the first equation to get where was the plane at the end of the 11th second and where is it at the end of the 12th second.

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