Anikate
  • Anikate
vector question, please help: http://prntscr.com/8bm3k4
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Do you know the formula to find it?
Anikate
  • Anikate
what formula is it?
Anikate
  • Anikate
i do not recall any formula

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anonymous
  • anonymous
here u go ^u^ http://www.dummies.com/how-to/content/how-to-find-the-angle-and-magnitude-of-a-vector.html
UnkleRhaukus
  • UnkleRhaukus
|dw:1441161860276:dw|
UnkleRhaukus
  • UnkleRhaukus
|dw:1441161942273:dw|
dan815
  • dan815
have u learnt about dot product
UnkleRhaukus
  • UnkleRhaukus
|dw:1441161992228:dw|
dan815
  • dan815
you have to use more pure vector methods unklerhaukus xD, meeting his curriculum
UnkleRhaukus
  • UnkleRhaukus
|dw:1441162071882:dw|
UnkleRhaukus
  • UnkleRhaukus
Decompose the vectors into components along x and y, the sum will be the sum of the components
UnkleRhaukus
  • UnkleRhaukus
use pythag to find the length of the resultant vector
dan815
  • dan815
(A+B) dot (A+B) = |A+B|^2 therefore A dot A + B dot B + 2*A dot B = |A+B|^2 |A|^2+|B|^2+2*|A||B|cos(theta)=|A+B|^2 take sqrt of both sides to get |A+B|
dan815
  • dan815
|dw:1441162493136:dw|
Anikate
  • Anikate
head to tails of what?
Anikate
  • Anikate
also what is dot?

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