1. Scalars versus Vectors

2. Graphical Representation

3. Mathematical Representation

4. Vector Components

5. Unit Vectors

Vector A makes an angle of 30° with the positive x-axis and has a length of 20. Vector B has a length of 20 and makes an angle of 45° with the positive x-axis. Which of the following is true?

A and B have the same direction, but, different magnitudes.

A and B have the same magnitude and direction.

A and B have different magnitudes and different directions.

A and B have the same magnitude, but, different directions.