1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Projectile gun question

  1. Oct 8, 2011 #1
    1. The problem statement, all variables and given/known data
    A gun fires a shell with a speed of 315m/s. Neglecting the effects of air resistance, calculate the maximum range of this gun


    2. Relevant equations

    t=(vf-vi)/a
    v=d/t

    3. The attempt at a solution
    it doesn't give me an angle so I am kind of confused on how to solve this problem. I know that to solve this question, i need to figure out the angle the shell is fired at, then use the given velocity to find the x and y component velocities, find time using velocity and acceleration (the first equation), and then use that time to find the range of the gun by solving for d in the second equation. I don't think i have enough information?
     
  2. jcsd
  3. Oct 8, 2011 #2

    gneill

    User Avatar

    Staff: Mentor

    You either:
    1. Happen to have memorized the angle that gives a projectile its maximum range when fired over level ground;
    2. Look up the optimal angle in your text or via the web.
    3. Derive the formula for maximal angle from scratch.

    Some options require more effort... :smile:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Projectile gun question
  1. Toy gun Projectiles (Replies: 8)

Loading...