Question:
In Figure, identify the following vectors.
(i) Coinitial
(ii) Equal
(iii) Collinear but not equal
Solution:
(i) Vectors $\vec{a}$ and $\vec{d}$ are coinitial because they have the same initial point.
(ii) Vectors $\vec{b}$ and $\vec{d}$ are equal because they have the same magnitude and direction.
(iii) Vectors $\vec{a}$ and $\vec{c}$ are collinear but not equal. This is because although they are parallel, their directions are not the same.