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B Is the trajectory parabolic or elliptical?

  1. Dec 14, 2016 #1
    Parabolic shooting is a kind of orbit interrupted by the ground.

    So I was wondering if I could calculate speeds of the bullet accounting for conservation of angular momentum.

    Would this diagram be correct?

    IMG_20161214_143014_zpsoqhx1v9p.jpg
     
    Last edited: Dec 14, 2016
  2. jcsd
  3. Dec 14, 2016 #2
    Why don't you try yourself to see if the result is compatible with the one obtained by using the laws of motion for projectile in uniform field?
     
  4. Dec 14, 2016 #3

    Dale

    Staff: Mentor

    Not really. A parabola comes from assuming a uniform gravitational force. When you talk about orbits you are talking instead about a central force. It would be the tip of an ellipse, not a parabola.

    Edit: sorry @nasu I basically fed him the info you were trying to get him to discover.
     
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