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 Help

  1. Nov 4, 2004 #1
    For a physichs project I had to build a trebuchet. I measured how for it shot, and how long it took. After some calculations I got:
    Vi in the X= 6.258
    VI in the y= 6.64
    Accel in X= 0
    Accel in Y= -9.8
    Distance in the X= 4.8
    Distance in the Y= 2.25
    Time in the X= 1.36
    Time In the Y= .68

    Now after that I am supposed to pick different points on the arc and measure the Velocity in the Y and X. Im not sure what distance to use? For instance if I wanted to measure the velocity at .1 seconds in the arc on the X and Y, what would I use?
     
  2. jcsd
  3. Nov 4, 2004 #2
    Someone Please Help Me. I can only stay online another 40 minutes, and I need this done tonight.
     
  4. Nov 4, 2004 #3
    The velocity versus time relationships are:

    [tex]v_{x} = v_{0}\cos\alpha[/tex]
    [tex]v_{y} = v_{0}\sin\alpha - gt[/tex]

    In your case.

    [tex]v_{i,x} = v_{0}\cos\alpha[/tex]
    [tex]v_{i,y} = v_{0}\sin\alpha[/tex]
     
  5. Nov 4, 2004 #4
    velocity at any point = vi+at
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Projectile Help
  1. Help with projectiles! (Replies: 5)

  2. Projectiles Help (Replies: 5)

  3. Projectile Help (Replies: 3)

  4. Projectile Help (Replies: 4)

  5. Projectile HELP (Replies: 2)

Loading...