Components of a Vector | Vectors

A vector $\vec{A}$ in 3 dimensions can be represented with tail at origin ‘O’ of a cartesian coordinate system.

If (A1, A2, A3) is the terminal (ending) point of a vector $\vec{A}$, then it can be written as:

$\vec{A}$ = A1$\hat{i}$ + A2$\hat{j}$ + A3$\hat{k}$

Here, A1$\hat{i}$, A2$\hat{j}$, A3$\hat{k}$ are called rectangular component vectors or components of vector A.