CHAPTER 2
1 Pseudo-vector is a variable, which can have one of the two directions as compared to a vector that can have any direction. For example, surface area is represented by a normal drawn normal to the surface; it is taken positive when drawn outwards and negative in the opposite direction. Thus, there are only two directions for it. The same is true for pressure. Therefore, it is considered as a scalar for all practical purposes.
2 A vector is zero only if its components are zero. The components in expanded form in Cartesian coordinates are given. Equating these to zero gives the equation of the stream line.
3 In vector algebra, we read and that is the vectors can interchange their position in dot product (scalar product) and not in ...
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