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Suppose you walk 18.0 m straight west and then 25.0 m straight north. How far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? (If you represent the two legs of the walk as vector displacements $\vec{A}$ and $\vec{B}$ , as in Figure 3.55, then this problem asks you to find their sum $\vec{R} = \vec{A} + \vec{B}$ .)
Question Image
<b>Figure 3.55</b>
Figure 3.55
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Final Answer
$30.8 \textrm{ m, } 54.2^\circ \textrm{ N of W}$
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OpenStax College Physics Solution, Chapter 3, Problem 4 (Problems & Exercises) (2:05)

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