3. Vectors

Let $\stackrel{\rightharpoonup }{A}=\widehat{i}+2.0\widehat{j}$, $\stackrel{\rightharpoonup }{B}=-7.0\widehat{i}$, and $\stackrel{\rightharpoonup }{C}=3.0\widehat{i}+\widehat{j}$. What is the direction of $\stackrel{\rightharpoonup }{A}+\stackrel{\rightharpoonup }{B}+\stackrel{\rightharpoonup }{C}$? Express your answer in degrees counter clockwise from the positive x axis.

Let $\stackrel{\rightharpoonup }{A}=\widehat{i}+2.0\widehat{j}$, $\stackrel{\rightharpoonup }{B}=-7.0\widehat{i}$, and $\stackrel{\rightharpoonup }{C}=3.0\widehat{i}+\widehat{j}$. What is the magnitude of $\stackrel{\rightharpoonup }{A}+\stackrel{\rightharpoonup }{B}+\stackrel{\rightharpoonup }{C}$?

A postal employee drives a delivery truck over the route shown in Fig. E1.25. Use the method of components to determine the magnitude and direction of her resultant displacement. In a vector-addition diagram (roughly to scale), show that the resultant displacement found from your diagram is in qualitative agreement with the result you obtained by using the method of components.

For the vectors A and B in Fig. E1.24 use the method of components to find the magnitude and direction of (d) the vector difference B - A

For the vectors A and B in Fig. E1.24 use the method of components to find the magnitude and direction of (c) the vector difference A - B

For the vectors A and B in Fig. E1.24 use the method of components to find the magnitude and direction of (a) the vector sum A + B