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# C4 vectors question watch

1. I can do question 4 part b, but don't get where to place the vectors. Where would you plot the points a and b?
2. Well, can you relate a to a vector joining 2 points on the parallelogram (possibly with a scale factor)? How about b? So where should they go on a copy of the diagram?
3. (Original post by DFranklin)
Well, can you relate a to a vector joining 2 points on the parallelogram (possibly with a scale factor)? How about b? So where should they go on a copy of the diagram?
Wouldn't the position b be half way from T to S ?
4. (Original post by gooner1010)
Wouldn't the position b be half way from T to S ?
I don't think so - what did you get for OS and TR?
5. (Original post by DFranklin)
I don't think so - what did you get for OS and TR?
OA = 1/2 OS , OB = 1/4 TR

Wouldn't that mean its half way? between T and S
6. (Original post by gooner1010)
OA = 1/2 OS , OB = 1/4 TR

Wouldn't that mean its half way? between T and S
No. OB is in the same direction as TR but a quarter of its length. I don't know where you've got "half way between T and S from"...
7. (Original post by DFranklin)
No. OB is in the same direction as TR but a quarter of its length. I don't know where you've got "half way between T and S from"...
Ahh, I've got it now. I wasn't taking into account the direction of the points.
Thanks for the help.

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