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9.Show that the sum of the vectors discussed inExample 3.2 gives the result shown inFigure 3.24.

Vtot = VA + VB Viot = 6.72 m/s VB Viot 23.0 26.50 VA 22.50 X Figure 3.55 The two velocities VA and VB add to give a total Viot-L N Figure 324 In this case R = 52.9 m and 9 = 90.1\" north of east. We can see that the woman will end up a signicant distance from the clock it she travels in the opposite direction tor the second leg 01 the trip. Discussion Because subtraction of a vector is the same as addition of a vector with the opposite direction, the graphical method of subtracting vectors works the same as for addition. 22. A farmer wants to fence off his four-sided plot of flat land. He measures the first three sides, shown as A, B, and C in Figure 3.60 , and then correctly calculates the length and orientation of the fourth side D. What is his result? y IA +B +C+D=0 N C = 3.02 km C W E D = ? km 0 = ? 190 -2- D S 16 X B 7.50 B = 2.48 km A = 4.70 km A Figure 3.60