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!

Kinematics problem, don't know how to find unknown variables

  1. Sep 9, 2012 #1
    1. The problem statement, all variables and given/known data
    A rocket is shot straight up with an initial speed at 500 m/s.


    2. Relevant equations
    The equations the teacher went over beforehand were

    Yf = 1/2 A(T)^2 + Vi(T) + Yi
    Vf = A(T) + Vi

    3. The attempt at a solution
    So far I have

    Vf = (-9.8)(T) + 500 m/s
    Yf = 4.9T2 + 500T + 0

    ...and I have no idea how to go about solving for the rest of the unknown variables. It seems like I need T somehow, but I don't know how I can get it from the information given.
     
  2. jcsd
  3. Sep 9, 2012 #2
    What is the question?
     
  4. Sep 9, 2012 #3
    Oh, sorry. Guess I didn't make that clear. You basically just have to find all the variables in the equations.
     
  5. Sep 9, 2012 #4
    I still do not know what is the question.
    If you have a rocket with velocity of 500m/s, you can be anywhere in this universe.
    Maybe on any planet.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Kinematics problem, don't know how to find unknown variables
Loading...