# Simple Guidance For You In Vector And Non Vector.

Vector is defined as wich quantity that has both a magnitude and a direction. Non-vector is defined a quantity which has only a magnitude. Therefore all physical quantities can be divided into two categories. They are vectors and non-vectors. The length, mass and time are the non-vectors, and the mass, power, and velocity are the vector quantities. Think of the difference between these two types.

Example as a vector quantity. Consider the distance and displacement between two traveling cities shown as the fig. The shortest distance between the two cities is AB. It is only available in a straight line with a direction. It has a direction and a magnitude.

Therefore it is really a vector. The indirect curve,  brown colored in various directions, is a route to the city between A and B. This is a non-vector quantity because it’s direction is changed by itself. It has only a magnitude.

## Expressing of a vector

The diagram above depicts as a vector.  is the magnitude of the vector  . over line represents it as a vector.