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EXAMPLE 4-9 Adding force vectors. Calculate the sum of the two forces exerted on the boat by worke ...
EXAMPLE 4-9 Adding force vectors. Calculate the sum of the two forces exerted on the boat by workers A and B in Fig. 4-19a. APPROACH We add force vectors like any other vectors as described in Chapter 3. The first step is to choose an xy coordinate system (see Fig. 4-19a), and then resolve vectors into their components. FIGURE 4-19 Example 4-9: Two force vectors act on a boat. FA = 40.0 N 45.0° 37.0° L. FB = 30.0 N (a)