This document discusses vectors and their properties. It explains that there are two types of quantities: scalar quantities which only have magnitude and vector quantities which have both magnitude and direction. Vectors are usually written as bold capital letters or small letters with arrows. There are several methods to find the resultant of two or more vectors, including the triangle method, parallelogram method, polygon method, and analytical method using trigonometric equations. Examples are provided to demonstrate how to use these methods to calculate vector resultants and components.