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!

Homework question- kinematics in two dimension

  1. Nov 6, 2007 #1
    Ok im stuck on how to solve this problem and i dont have physics again until next week. The question is:

    A ball is thrown horizontally at 22m/s from the roof of a building lands 36.0m from he base of the building. How tall is the building?
     
  2. jcsd
  3. Nov 6, 2007 #2

    Kurdt

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    What have you attempted so far?
     
  4. Nov 6, 2007 #3
    ive tried nothing and im all out of ideas
     
  5. Nov 6, 2007 #4

    Kurdt

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

  6. Nov 6, 2007 #5
    I can give you some hints. Resolve the ball's motion into the horizontal and vertical components.

    For the horizontal component, you already have the initial velocity and the horizontal distance traveled (36.0m). Find the time taken for the ball to fall.

    Now that you have this, use it for the vertical component. In the following formula:

    s = ut + 0.5a(t^2)

    s is the vertical height.

    You should be able to solve your problem now. :)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Homework question- kinematics in two dimension
Loading...