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Finding average/final velocity and acceleration.

  1. Oct 14, 2012 #1
    1. The problem statement, all variables and given/known data
    An object with an initial velocity of 10.0m/s moves 720m in 45s along a straight line iwht constant acceleration. For the 45s interval, find its average velocity, final velocity and acceleration.


    2. Relevant equations
    5 Kinematic equations:
    d=1/2(Vf+Vi)t
    Vf=Vi+at
    d=Vit+1/2at^2
    d=Vft-1/2at^2
    Vf^2=Vi^2+2ad

    I can't seem to distinguish between the final and average velocity. The acceleration part is simple enough. Thanks :)
     
  2. jcsd
  3. Oct 14, 2012 #2

    tiny-tim

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    Science Advisor
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    Welcome to PF!

    Hi HelloImAsh! Welcome to PF! :smile:

    (try using the X2 button just above the Reply box :wink:)
    average velocity = total displacement divided by total time

    (which, for constant acceleration, = (vi + vf)/2)
     
  4. Oct 14, 2012 #3
    Thanks, I got the answer.
     
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