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Horizontal component of the superhero’s displacement?

  1. Aug 22, 2010 #1
    1.A superhero flies 340 m from the top of a
    tall building at an angle of 22 ◦ below the
    horizontal.
    What is the horizontal component of the
    superhero’s displacement?
    Answer in units of m. What is the vertical component of the super-
    hero’s displacement?
    Answer in units of m.




    2. Sin A, Cos A, Tan A



    3. The horizontal component is 315m.

    How do i find the vertical component?
     
  2. jcsd
  3. Aug 22, 2010 #2
    Re: Superhero

    you use sine instead of cosine. make sure you plug in -22 degrees, though, since the angle given is "below the horizontal"
     
  4. Aug 22, 2010 #3
    Re: Superhero

    to find the vertical. do i just do (sin -22) and then multiply that by the horizontal component (315)?
     
  5. Aug 22, 2010 #4
    Re: Superhero

    no.

    you need to find out what the magnitude of the vector is and then find the y component by multiplying it by sine.

    Can you write out the equation that gives the x-component? with that equation, do you think you could solve for the original magnitude given an x-component and an angle?
     
    Last edited: Aug 22, 2010
  6. Aug 22, 2010 #5
    Re: Superhero

    well i found the horizontal component by putting Cos(22) and then i multiplied that answer with the 340m
     
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