Chapter 13.4, Problem 8CE

To determine

To find: The two ways and name the vector representing a wind.

Answer to Problem 8CE

  $-\overleftarrow{PQ}$ is the vector that represents the wind blowing $-45\text{km/h}$ from the south.

Explanation of Solution

Given information:

  $\overrightarrow{PQ}$ represent the wind blowing $45\text{km/h}$ from the north.

Calculation:

According to the question, the vector $\overrightarrow{PQ}$ represents the wind flowing from north $45\text{km/h}$ .

Magnitude and direction displays a vector. So the vector from south has opposite direction and the magnitude will be negative.

In the figure $\left(1\right)$ , the directions of the vector are given.

Therefore, $-\overleftarrow{PQ}$ is the vector that represents the wind blowing $-45\text{km/h}$ from the south.

  

Figure $\left(1\right)$

Therefore, the $-\overleftarrow{PQ}$ is the vector that represents the wind blowing $-45\text{km/h}$ from the south.