A hiker’s displacement relative to camp is described by the components Δx=+25m (east) and Δy=−40m (south). Which of the following gives the magnitude of this displacement and its direction?
a) 47m at 58∘ north of east
b) 65m at 32∘ south of east
c) 47m at 58∘ south of east
d) 47m at 32∘ south of east