Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Phsyics Kinematics: cannonball shot straight up

  1. Feb 28, 2010 #1
  2. jcsd
  3. Feb 28, 2010 #2
    here is my math for it.

    [tex]v_{y}=v\sin\theta[/tex]
    [tex]v_{x}=v\cos\theta[/tex]

    [tex]t=\frac{v\sin\theta}{g}[/tex]
    to get the total time in the air multiply by two, becuase that time is only half way.
    [tex]x=v\cos\left(\theta\right) t[/tex]
    plug in t
    [tex]x=\frac{2v^2\sin\theta \cos\theta}{g}[/tex]

    that should get you the distance traveled... i think but look over my math.
     
  4. Mar 1, 2010 #3
    Oh. I'm having trouble with the angle though. Not sure what it would be.
     
  5. Mar 1, 2010 #4
    and isn't there acceleartion in the x direction too?
     
  6. Mar 1, 2010 #5
    From what i saw in the problem there were not any more forces than just gravity... and gravity only works in the y direction. your angle is the one given in the problem, 45.
     
  7. Mar 1, 2010 #6
    Oh I was talking about question 23. Hehe I already solved for question 22. Oh well. My exam is in 20 min. Dumdumdum. So it's okay. Thanks for the help though
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Phsyics Kinematics: cannonball shot straight up
  1. Shot parabola (Replies: 2)

Loading...