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I have a High school physics exam study guide? cant solve

  1. Dec 10, 2015 #1
    1. The problem statement, all variables and given/known data
    A car moving with an initial velocity of 25 m/sec north has a constant acceleration of 3 m/sec2 south. After 6 seconds its velocity will be?

    7 m/sec north

    7 m/sec south

    43 m/sec north

    20 m/sec north

    20 m/sec south

    2. Relevant equations
    Im not sure, but X-Xo=0.5( V + Vo) (t)

    3. The attempt at a solution
    X=
    V= 25/3 (6)
    Not even sure where to go from here...
     
  2. jcsd
  3. Dec 10, 2015 #2
    What are some of the other SUVAT equations, and which one of these involves only velocity and acceleration?
     
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