Y = -2.15 km.
R = 3.95 km.
a. sin A = Y/R = -2.15/3.95 = -0.54430
A = -33o = 57o East of South.
R = 3.95km[57o] East of South.
A jogger travels a route that has two parts. The first is a displacement of 2.15 km due south, and the second involves a displacement that points due east. The resultant displacement + has a magnitude of 3.95 km. (a) What is the magnitude of , and what is the direction of + as a positive angle relative to due south? (b) Suppose that - had a magnitude of 3.95 km. What then would be the magnitude of , and what is the direction of - relative to due south?
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