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!

2D projectile motion (on calculator?)

  1. Nov 9, 2009 #1
    1. The problem statement, all variables and given/known data

    A person is standing on a cliff that is 10m tall, the boy is 2m back from the ledge of the cliff.
    He shoots an arrow at a 45 degree angle. Initial velocity is 5 m/s.

    I need to find max height when the arrow will reach the height. How far the arrow went in the X direction, and How far should I build a wall that's .5m high, so that the arrow just misses the wall.

    **We can use our calculators.

    2. Relevant equations
    To set this up I used y1= -9.8 y2=-9.8t y3=10+3.5t-4.9x^2 y5=3.5 y6=-2+3.5t
    I found 3.5 from the Sin and Cos of 45.

    3. The attempt at a solution

    I found the max height and the time that the arrow reached it from the parabola on my calculator 10.6m at .36sec
    but I can't seem to find the other ones. I just need to know which line to look at.

    Thanks so much!
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: 2D projectile motion (on calculator?)
  1. Motion in 2D (Replies: 0)

  2. 2D motion (Replies: 0)

  3. Projectile motion (Replies: 0)

  4. Projectile Motion (Replies: 0)

Loading...