1. Limited time only! Sign up for a free 30min personal 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!

Angle of Projectile

  1. Sep 23, 2013 #1
    1. The problem statement, all variables and given/known data
    A golf ball is hit from the ground into a building window 50m high and 50m away from starting point. Find the initial angle.


    3. The attempt at a solution
    I will work backwards for this question. I assume that the final y velocity (Vy) is 0m/s.

    the first equation I do is: Vy^2= Viy^2 + 2ay(y)
    I solve this equation for Viy and I get 31.32m/s.

    Next I use the equation: Vy = Viy + ayt
    I solve this equation for time and I get 3.192s.

    Next I use d = vt and in respects to x. I solve for v (being the initial x velocity). For this I get Vix to be 15.66m/s.

    Now I have initial x and y velocity and use inverse tan to solve for angle. I get the initial angle to be: 63 degrees.

    Are my numbers and method correct?
     
    Last edited: Sep 23, 2013
  2. jcsd
  3. Sep 23, 2013 #2
    I believe my steps are correct.
     
    Last edited: Sep 23, 2013
  4. Sep 23, 2013 #3
    Why do you assume that the final vertical velocity is zero?
     
  5. Sep 23, 2013 #4
    The final y velocity I assume to be zero. I forgot to add in a part where it said that it hit the window at its max height of motion.

    Given these circumstances I am correct, no?
     
  6. Sep 23, 2013 #5
    With the clarification, your solution is correct.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Angle of Projectile
  1. Projectile angle (Replies: 4)

  2. Angled Projectiles (Replies: 4)

  3. Projectile at an angle (Replies: 4)

  4. Projectile Angle (Replies: 5)

  5. Angle of a projectile (Replies: 1)

Loading...