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- Thread starter ohheytai
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- #2

0ddbio

- 31

- 0

So what vectors would [itex]r_{n}[/itex] and [itex]r_{a}[/itex] be if they start at the origin? Where would the end of those vectors lie? Given that [itex]r = r_{n} - r_{a}[/itex].

If the answer isn't obvious then review material on graphically subtracting vectors.

- #3

ohheytai

- 85

- 0

i only have the vector sum though and i dont have those two vectors

- #4

cupid.callin

- 1,137

- 0

ra is the vector from origin to head of the vector r

and rb is vector from origin to tail of vector r

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