Position Vector


In these lessons, we will learn what a position vector is and how to find a position vector for a vector between two points.




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Related Pages
Vectors
Equal Vectors
Vector Multiplication
Vector Geometry

What Is A Position Vector?

A vector that starts from the origin (O) is called a position vector.

In the following diagram, point A has the position vector a and point B has the position vector b.

position vectors on the coordinate plane

Example:
position vector examples

Tutorial On Vectors

What are 2-dimensional Vectors, 3-dimensional Vectors, Displacement Vectors and Position Vectors?

How To Find The Position Vector?

Example:
P is the point (3, 4). \(\overrightarrow {PQ} = \left( {\begin{array}{*{20}{c}}{ - 6}\\3\end{array}} \right)\).
Find the position vector of Q.




Vectors In R2 And R3

Position Vector and Magnitude / Length.
How to find a position vector for a vector between two points and also find the length of the vector?

Example:
a) Find the position vector v for a vector that starts at Q(3, 7) and ends at P(-4, 2)
b) Find the length of the vector found in part a)

How To Find The Position Vector Between Two Points?

Example:
Find the position vector between the point A(3, 2) and the point B(-2, 1)


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