Question

If Jon walked 1km north of the school and Bill walked 0.5km south of the school what is the displacement of Jon and Bill
oobleck
The question is poorly worded, but the distance between them is 1 - (-0.5) = 1.5 km
henry2,
D = 1i-(-0.5i) = 1i+0.5i = 1.5i = 1.5 km[0o] CW from +y-axis.