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Finding time and initial velocity of a vertically displaced launch

  1. Jan 9, 2014 #1
    1. The problem statement, all variables and given/known data
    A projectile is launched 0.635 m above the ground at an angle of 72.2°. It lands on the ground 1.64 m away


    2. Relevant equations



    3. The attempt at a solution

    Ive tried so many different equations and have looked up different ways, but I just don't know what I'm doing anymore
     
  2. jcsd
  3. Jan 9, 2014 #2

    SteamKing

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    We don't know what you've tried either. If you post your work, it would help us to see where you've gone wrong.

    In any event, draw a sketch of your problem and use the standard motion equations.
     
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