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Right Hand Rule

  • Thread starter duplaimp
  • Start date
  • #1
33
0
Hi,
I have a question about how to apply the right hand rule in this vector (AxB)

5PNOAT8.png


I would say that it is -k (missing ^) because of the smallest angle is the one drawn in red, but it is k. Can anyone explain why?
 

Answers and Replies

  • #2
Doc Al
Mentor
44,872
1,120
Draw the vectors with their tails at the same point.
 
  • #3
33
0
But the vectors are given as I draw
 
  • #4
Doc Al
Mentor
44,872
1,120
But the vectors are given as I draw
True, but you must redraw them to properly apply the right hand rule. The vectors are both applied at the same point; redraw so that the tails of the vectors emanate from that point.

By redrawing the vectors you are not changing them. You're just sliding the vector A over so that its tail coincides with that of vector B. Sliding vectors around does not change them, as long as they continue to point in the same direction.
 

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