Representing a vector
There are a number of ways of representing vector quantities. These include:
- Using bold print
- AB where an arrow above two capital letters denotes the sense of direction, where A is the starting point and B the end point of the vector
- AB or a i.e. a line over the top of letters
- a i.e. an underlined letter
The force of 9N at 45◦ shown in above figure may be represented as:
The magnitude of the force is 0a Similarly, the velocity of 20m/s at −60◦ shown in above figure may be represented as:
The magnitude of the velocity is 0b
