# Help on vectors

1. Aug 21, 2008

### golden_acorn

1. The problem statement, all variables and given/known data

The quantities that describe location or its change are position, distance, and displacement. Which are vectors?

A.distance
B.none of these
C.displacement
D.position

2. Aug 21, 2008

### LowlyPion

Welcome to PF.

What are your thoughts on what vectors would be?

3. Aug 21, 2008

### golden_acorn

Thanks. You see, that is precisely what I am confused about....If anyone can kind of help me understand what vectors are, that would be awesome...I have a test coming up soon, so I'm in Pre-AP Physics, and we just started with this stuff, and we are required to be enrolled in Adv Pre-Calc/Trig(hope that helps on how much I know).

4. Aug 21, 2008

### LowlyPion

OK. Then let me suggest this treatment at the link below as a place to start.

http://en.wikipedia.org/wiki/Vector_(spatial [Broken])

Keeping in mind that a vector associates both a direction and a magnitude, then which of the terms in your question might contain both of those properties?

Last edited by a moderator: May 3, 2017
5. Aug 21, 2008

### golden_acorn

alright, thanks for the article. So it would be displacement and position? Still trying to get the hang of this

6. Aug 21, 2008

### LowlyPion

Can you take a moment to describe why you think both of those embody the 2 properties of direction and magnitude?

7. Aug 21, 2008

### golden_acorn

Well, displacement is a vector, and it's the distance between the start and the finish position of a path, and position is also part of a vector. uh.....I hope this is somewhat there? haha.

8. Aug 21, 2008

### LowlyPion

Part?

If you find a bow, have you found a bow and arrow or just a bow?

9. Aug 21, 2008

### LowlyPion

That is correct I forgot to mention. The displacement embodies both a direction of displacement AND a magnitude.

If you displace yourself 1 mile to the Northwest, that can be expressed as a vector. A magnitude and a direction. But for the purposes of the question the position of your house for instance is not a vector unless it gets moved.

10. Aug 21, 2008

### golden_acorn

ok. I understand. Thank you!