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Projectile Motion

  1. Sep 21, 2006 #1
    I have a problem.

    Given: T=1.05s
    Dx=46.1feet
    Angle=15 Degrees.

    I need to find Vx and Vy and Vi and Dymax.

    Can anyone help me set up the problem? for each thing I need to find...:frown:
     
  2. jcsd
  3. Sep 21, 2006 #2

    mnx

    User Avatar

    you can find Vx using T and Dx, then you can find Vy through trigonometry, and then you'll be able to find the rest.
     
  4. Sep 21, 2006 #3
    Put up some work, so we know what to help you with. If you just need a start, you can go with these equations:

    Remember that the distance in the x direction is just the component of velocity in the x direction multiplied by the time it takes.
    [tex]x=v_{x}t[/tex]

    [tex]v_{x}=v_{i}cos(\theta)[/tex]

    [tex]v_{y}=v_{i}sin(\theta)[/tex]

    Using those, and a basic knowledge of kinematics you should be able to find everything you need.
     
    Last edited: Sep 21, 2006
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