Answer:
-5.3 m
Explanation:
Consider north to be the positive direction, and south to be the negative direction. Adding up the displacements gives
(+2.1m) + (-7.4m) = 2.1 - 7.4m = -5.3m (southward direction)
This makes sense because if he travels 2.1 m north, then 7.4 south, he would end up south of where he started because he passed 2.1 m and went further
