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How do i find acceleration givin initial velocity, final velocity, and displacement?

  1. Jan 28, 2013 #1
    1. A hockey puck has an initial velocity of 49 m/s and a final velocity of 35 m/s. If it travels 25 m during this time, what is the acceleration?


    2. V^2=V0^2+2a(x-x0)



    3. I can't even begin the above equation because I don't know what my velocity is. I tried putting my final velocity in the above equation as V^2 and got -.28 m/s^2. It was wrong. I am assuming that is not how the equation is supposed to be used. Please help!
     
  2. jcsd
  3. Jan 28, 2013 #2

    tiny-tim

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    welcome to pf!

    hi tball665! welcome to pf! :smile:

    (try using the X2 and X2 buttons just above the Reply box :wink:)

    V is the final velocity, and Vo is the initial velocity :wink:
     
  4. Jan 28, 2013 #3
    Re: how do i find acceleration givin initial velocity, final velocity, and displaceme

    since (X-X0) is 25-0

    you can move variables around and solve for a
     
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