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Basic Free-fall Problem

  1. Oct 30, 2011 #1
    1. The problem statement, all variables and given/known data

    A stone is thrown straight upward with a velocity of 10V and travels upward a distance X. What is the displacement when the object is traveling at 5V?

    2. Relevant equations



    3. The attempt at a solution

    .75X? Further, what's the most efficient way of solving for it?
  2. jcsd
  3. Oct 31, 2011 #2
    With half the speed the stone has 1/4 of the kinetic energy left so can only go 1/4*X higher or it is at 3/4*X when the speed is 5V.
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