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Range equation

  1. Nov 17, 2005 #1
    My question is, derive an equation to find the maximum range of a projectile thats not on level ground. I am lost and i did attempt this, by making a diagram and subbing in what i thought i would need to use, but i still have not come up with the answer. plz help
     
  2. jcsd
  3. Nov 17, 2005 #2
    I think the best thing you can do is post whatever you have done. I could suggest a lot but I don't know what is making you go wrong.

    The Bob (2004 ©)
     
  4. Nov 18, 2005 #3

    andrevdh

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    Homework Helper

    Substitute
    [tex]y=R\ sin\alpha[/tex]
    and
    [tex]x=R\ cos\alpha[/tex]
    in the parabolic equation for the projectile.
    The range will then be a function of [itex]\theta[/itex].The turning point of a function occurs where the derivative is zero...
     
    Last edited: Nov 29, 2006
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