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Homework Help: Displacement speed

  1. Nov 16, 2008 #1
    1. The problem statement, all variables and given/known data
    Janet jumps off a high-diving platform with a horizontal velocity of 3.1 m/s and lands in the water 3.0 s later. How high is the platform, and how far from the base of the platform does she land?
    m (height)
    m (distance from platform)


    2. Relevant equations

    horizontalV*t=D

    3. The attempt at a solution
    I have got the distance from platform to be 9.3m using the forunla, but am unsure of the height like what forumla to use
     
  2. jcsd
  3. Nov 16, 2008 #2

    LowlyPion

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    Homework Helper

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