Question

If a woman runs 100 meters north and then 70 meters south, what is her total displacement?

Answer 1

100-70 is 30 so the displacement would be 30 meters

Answer 2

Displacement is the distance between the starting and ending points, in the direction from the starting point to the ending point, all regardless of the route followed from the starting point to the end point.

The woman's displacement is therefore 30 meters north.