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Projectile problem: throwing something off a tower

  1. Sep 4, 2012 #1
    1. The problem statement, all variables and given/known data

    Tossing a water ballon from a building at an angle of 30 degrees. Inital velocity is 3 m/s and the window which the ballon is thrown is 50 m from the ground.
    for vertical velocity i got 2.6m/s, horizontal i got 1.5 m/s

    There are 4 pts. A is the starting point. B is the middle of the projectile. C is where it is decreasing but also same horizontally as A. D is the very bottom of the projectile.

    I.e. of how picture looks : http://tinypic.com/r/17srp0/6


    2. Relevant equations



    3. The attempt at a solution
    So i figured out the times:
    A 0 sec
    B .27 sec
    C .42 sec
    D 2.16 sec

    Now how do i get the range? and velocity angle? please help, are the values i got above correct?
     
  2. jcsd
  3. Sep 5, 2012 #2

    ehild

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    Homework Helper
    Gold Member

    Hi sunshine, welcome to PF.
    Show how you got those times, please. I do not understand where the points B and C are. What is "middle of projectile"? And what is same horizontally as A?


    ehild
     
  4. Sep 5, 2012 #3

    CWatters

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    Science Advisor
    Homework Helper

    You know the horizontal velocity and the flight time.
     
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