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A vector is a mathematical object that has both a magnitude (size) and direction. Vectors are commonly represented as line segments in two- or three-dimensional space or, more abstractly, as columns of numbers.

Vectors are very important in physics, engineering and mechanics. You can use them to represent the velocity and acceleration of a moving object.

Take a look at our video guides for help with vectors. You can click on the 3-tile icon to select a video from the playlist which is shown below.

Playlist consists of:
  1. Scalar and vector quantities
  2. Representing vectors
  3. Adding and subtracting vectors
  4. Vectors in component (i+j) form
  5. Magnitude and direction from components