Question

Find the unit vector that has the same direction as the vector v.v = 2i

Answer 1

We have

$\begin{gathered} |v|=\sqrt[]{2^2} \\ |v|=2 \end{gathered}$

We have v=2i

The unit vector that has the same direction is

$\frac{2}{2}i=i$

The unit vector that has the same direction as the vector v is u=i