Chapter 3, Problem 16P

For the displacement vectors $\stackrel{\to }{a}=\left(\text{3}.0\text{ m}\right)\hat{i}+\left(\text{4}.0\text{ m}\right)\hat{j}$ and $\stackrel{\to }{b}=\left(\text{5}.0\text{ m}\right)\hat{i}+\left(-\text{2}.0\text{ m}\right)\hat{j}$, give $\stackrel{\to }{a}$ + $\stackrel{\to }{b}$ in (a) unit-vector notation, and as (b) a magnitude and (c) an angle (relative to $\hat{i}$). Now give $\stackrel{\to }{b}$ − $\stackrel{\to }{a}$ in (d) unit-vector notation, and as (e) a magnitude and (f) an angle.