You have two vectors, which are 2.59 m at 30.0° north of east and 4.18 m at 60.0° north of west. What is the magnitude in meters (m) of the vector which results from adding these two vectors together?

Respuesta :

Answer:[tex]\ec{r}=0.153\hat{i}+4.914\hat{j}[/tex]v

Explanation:

Given

Vector 1

[tex]\vec{a}=2.59\left ( cos30\hat{i}+sin30\hat{j}\right )[/tex]

Vector 2

[tex]\vec{b}=4.18\left ( -cos60\hat{i}+sin60\hat{j}\right )[/tex]

Resultant [tex]\vec{r}=\vec{a}+\vec{b}[/tex]

[tex]\vec{r}=2.59\left ( cos30\hat{i}+sin30\hat{j}\right )+4.18\left ( -cos60\hat{i}+sin60\hat{j}\right )[/tex]

[tex]\vec{r}=0.153\hat{i}+4.914\hat{j}[/tex]

[tex]|r|=4.916[/tex]