3.2 Adding Vectors Geometrically 
To add two vectors, say displacement vectors, means to evaluate the net displacement we can use what is called the graphical method. The net (or resultant) displacement of two displacement vectors and is given by the vector equation . The resultant is also a vector. The procedure to add the vectors geometrically is to bring the tail of at the head of keeping the orientation of the two vectors unchanged. The vector sum extends from the tail of vector to the head of vector .

The physlet on the left demonstrate how to add vectors geometrically and also demonstrate the commutative law for vector addition:

