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Homework Help: Finding the resultant graphically

  1. Sep 5, 2011 #1
    http://tinypic.com/r/2gsfm37/7"


    I would show work, but I am not sure how to even approach this, please help! Thank you!
     
    Last edited by a moderator: Apr 26, 2017
  2. jcsd
  3. Sep 5, 2011 #2
    Move the point at which the e vector begins and put it at the end of the arrow of the F vector. Draw a line from the point the F vector begins to the end of the arrow on the E vector. Put a nice little Arrow at the end of the line you just drew by the end of the E vector, and that is your resultant vector. Make sense?

    edit: your vectors will kinda look like this: _/, where F is the flat vector and E is the /. Your resultant will be the line that goes from the origin of both vectors in the beginning, and end at the tip of the moved E vector.
     
    Last edited: Sep 5, 2011
  4. Sep 5, 2011 #3
  5. Sep 5, 2011 #4
    no. Excuse the crude use of mspaint.
    It'll look like:
    problem.jpg

    technically you don't need the Left E vector and top F vector. You see how I just moved the E vector over to the F vector? and drew the resultant from beginning to E's tip.
     
  6. Sep 5, 2011 #5
    ohh! I remember learning this in trig last year!
    but, how do i do this when I don't know how long each side is?
     
  7. Sep 5, 2011 #6
    Graphically. Use a ruler and find out how long they are. Graphical method is proportionate.
     
  8. Sep 5, 2011 #7
    so if i have 9.5 & 5.5 how do i find the resultant? I completely forgot over this summer
     
  9. Sep 5, 2011 #8
    draw it all out, and measure the resultant. the distance you measured is the resultant. ie, if F=80n and it's 8cm long, that's 10n/cm. You draw it all out to scale, measure the resultant. and 10n/cm*R= Resultant force.
     
  10. Sep 5, 2011 #9
  11. Sep 5, 2011 #10

    Redbelly98

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    You draw the resultant just as you were shown in Post #4 earlier. And yes, then you would measure the resultant.
     
  12. Sep 5, 2011 #11
    Thank you very much hansthegerman and redbelly98, I really do appreciate the help
     
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