A vector is a mathematical object that has both a magnitude (size) and direction.
You can use them to represent the velocity and acceleration of a moving object, so vectors are very important in physics, engineering and mechanics. Vectors are commonly represented as line segments in two- or three-dimensional space or, more abstractly, as columns of numbers.
Tatch the video playlist below for guidance on how to work with vectors.
Click on the 3-bar menu icon in the top left of the video to navigate to different videos in the playlist.
- Scalar and vector quantities
- Representing vectors
- Adding and subtracting vectors
- Vectors in component (i+j) form
- Magnitude and direction from components
- Finding the components and finding the resultant of two
- Unit vectors
- Scalar product
- Three dimensions
- Vector product
- Vector product from components
- Vector equation of a straight line
- Parallel and intersecting lines
- Vector equation of a plane
- Angle between two planes
- Intersection of two planes