# Question 63e2c

Sep 12, 2017

$\vec{r}$= - $68 \cdot \frac{1}{2} \hat{i}$$- 68 \cdot \frac{\sqrt{3}}{2} \hat{j}$ + $170 \cdot \cos 20 \hat{j}$-$170 \cdot \sin 20 \cdot \hat{i}$

#### Explanation:

The resultant disp is

$\vec{r}$= - $68 \cdot \frac{1}{2} \hat{i}$$- 68 \cdot \frac{\sqrt{3}}{2} \hat{j}$ + $170 \cdot \cos 20 \hat{j}$-$170 \cdot \sin 20 \cdot \hat{i}$ .

by talking components along $\hat{j}$ and $\hat{i}$ we did it.

solve for the answer ,or you can leave it this way as non standard angles are used.