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Homework Help: Projectile motion calculations from data gathered during trials

  1. Oct 11, 2008 #1
    1. The problem statement, all variables and given/known data
    solve projectile motion formulas for [tex]\Theta[/tex] and [tex]v_0[/tex]
    all measurements are in m, t is seconds
    [tex]y_0=.005[/tex]
    [tex]x_0=0[/tex]
    the averages from my trials were:
    [tex]x=8.775 m[/tex]
    [tex]t=1.3 s[/tex]

    2. Relevant equations
    [tex]x=x_0+v_0*cos\Theta*t[/tex]
    [tex]y=y_0+v_0*sin\Theta*t+.5a_yt^2[/tex]

    3. The attempt at a solution
    after plugging in my numbers gives:
    for x
    [tex]6.75=v_0*cos\Theta[/tex]
    which as far as I can see still has two unknowns, where do I go from here?

    I'm pretty confused about the y component because I'm not even sure what y is supposed to be. Don't I need a y(max) number first?
     
    Last edited: Oct 11, 2008
  2. jcsd
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