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Kinematics in one dimension

  1. Jun 22, 2005 #1
    ok ive just cracked the ****s, for this question:

    A car rolls gentley(Vo=0 m/s) off a vertical cliff. How long does it take for it to reach 100km/hr.

    why cant i use V = Vo + at

    V= 100
    Vo = 0
    a = 9.8(gravity)
    t = ?

    the only equations ive been given to do this are:

    V = Vo + at
    V^2 = Vo^2 + 2ax
    x=Vot + 1/2at^2

  2. jcsd
  3. Jun 22, 2005 #2


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    Staff Emeritus
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    Gold Member

    Thats a good question, why can't you use it?
    What did you get for an answer using it?
  4. Jun 22, 2005 #3
    dont worry i got it, stupid me :grumpy:
    Last edited: Jun 22, 2005
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