Chapter 3 VectorsIn Physics we have parameters that can be completely described by a number and are known as “scalars”.Temperature, and mass are such parametersOther physical parameters require additional information about direction and are known as “vectors”. Examples of vectors are displacement, velocity and acceleration. In this chapter we learn the basic mathematical language to describe vectors. In particular we will learn the following: Geometric vector addition and subtraction Resolving a vector into its components The notion of a unit vector Addition and subtraction of vectors using vector components Multiplication of a vector by a scalar The scalar (dot) product of two vectors The vector (cross) product of two vectors(3-1)
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