Description: What are Vectors and Scalars and how do you go about adding or subtracting them. While dealing with vectors, it can be often confusing. This lesson starts from the basics and builds up on what are vectors and how you add and subtract them. Include use of unit vectors, cross product, dot product etc.
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Vectors are fundamental in the physical sciences. They can be used to represent any quantity that has magnitude, has direction, and which adheres to the rules of vector addition. An example is velocity, the magnitude of which is speed.