Vector Addition

Two or more vector can be added together to determine the result, there is no minus sign in those in vector addition, if the vector going to the opposite direction, for example, North and South, we use North + South instead of North + (-North).

We use Pythagorean Theorem and head to tail method to determining the magnitude and direction of adding two or more vectors.

 

 

We use trigonometry to determine a vector's direction

                                                                   1 km [N 45°E]         

                                                         One kilometer 45°east of north