Find the unit vector in the direction of (-5i + 12j).
\(\frac{1}{13}(-5i - 12j)\)
\(\frac{1}{13}(5i - 12j)\)
\(\frac{1}{13}(-5i + 12j)\)
\(\frac{1}{13}(5i + 12j)\)
Correct answer is C
The unit vector \(\hat{n} = \frac{\overrightarrow{r}}{|r|}\)
\(\hat{n} = \frac{-5i + 12j}{\sqrt{(-5)^{2} + (12)^{2}} \)
= \(\frac{-5i + 12j}{13} \)