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OpenStudy (anonymous):
find the resultant of following displacements: (a) 20km 30 degree south of east (b) 50km due west (c) 40km north east (d) 30km 60 degree south of west
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OpenStudy (anonymous):
Use trig to break down each vector into NSEW components. 20km * sin(30) = 10.0 km south 20km * cos(30) = 17.3 km east 50km west 40km * sin(45) = 28.3 km north 40km * cos(45) = 28.3 km east 30km * sin(60) = 28.0 km south 30km * cos(60 = 15.0 kmk west sum comes to 19.4 km west 9.7 km south 21.7 km 26.6° south of west
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