Physics - Vectors Question with Solution | TestHub

The displacement vector is $\Delta \vec{r}=\overrightarrow{r_2}-\overrightarrow{r_1}$.$\Delta \vec{r}=(5\hat{i}-\hat{j})-(2\hat{i}+3\hat{j})=(5-2)\hat{i}+(-1-3)\hat{j}=(3\hat{i}-4\hat{j})\text{ m}$. The average velocity is ${\vec{v}}_{avg}=\frac{\Delta \vec{r}}{\Delta t}$.${\vec{v}}_{avg}=\frac{3\hat{i}-4\hat{j}}{2}=(1.5\hat{i}-2\hat{j})\text{ m/s}$.