Find the Unit Vector in the Direction of v
-$$\mathbf { v } = - 8 \mathbf { j }$$
A) $\mathbf { u } = - \mathbf { j }$
B) $\mathbf { u } = - 8 \mathbf { j }$
C) $\mathbf { u } = 64 \mathbf { j }$
D) $\mathbf { u } = - \frac { 1 } { 8 } \mathbf { j }$

Question

Quizplus · Accepted Answer

A unit vector in the direction of a given vector can be found by dividing the vector by its magnitude. The magnitude of $\mathbf{v} = -8\mathbf{j}$ is $8$. Dividing $\mathbf{v}$ by its magnitude gives $\mathbf{u} = \frac{-8\mathbf{j}}{8} = -\mathbf{j}$.

Find the Unit Vector in the Direction of V - v=−8j\mathbf { v } = - 8 \mathbf { j }v=−8j

Find the Unit Vector in the Direction of V
- $\mathbf { v } = - 8 \mathbf { j }$