Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as
an angle in $$\left[ 0,360 ^ { \circ } \right]$$
-$$\langle 0 , - 18 \rangle$$
A) $18 ; 180 ^ { \circ }$
B) $18 ; 270 ^ { \circ }$
C) $324 ; 270 ^ { \circ }$
D) $18 ; 90 ^ { \circ }$

Question

Quizplus · Accepted Answer

The magnitude of the vector $\langle 0 , - 18 \rangle$ is calculated using the formula $\sqrt{x^2 + y^2}$, which gives $\sqrt{0^2 + (-18)^2} = 18$. The direction angle for a vector pointing directly down (negative y-direction) is $270^\circ$.

Find the Magnitude and Direction Angle (To the Nearest Tenth) [0,360∘]\left[ 0,360 ^ { \circ } \right][0,360∘]

Find the Magnitude and Direction Angle (To the Nearest Tenth) $\left[ 0,360 ^ { \circ } \right]$