A physical quantity which has a magnitude but no direction is called scalar quantity. Example: length, mass, time, area, etc. This note gives an introduction to vector and scalar.

We need to find the resultant of the vector by adding two or more vector. The resultant of the vector is called composition of a vector. This note provides an information on laws of vector addition and its' properties.

Vector subtraction is defined as the addition of one vector to the negative of another. This note provide us an information on vector subtraction and multiplication.