On his fishing trip Justin takes the boat 12km south. The fish aren’t biting so he goes 14km north
-12 + 14 = +2
To find Justin's final displacement after his fishing trip, we need to add the distances he traveled south and north.
First, let's define the positive direction as north and the negative direction as south. Since Justin traveled 12km south initially, we can represent this as "-12km". Then, when he changed his direction and went 14km north, we can represent this as "+14km".
To find the final displacement, we add the two distances together:
Final displacement = (-12km) + (+14km)
When we add (-12km) and (+14km), we get +2km.
Therefore, Justin's final displacement after his fishing trip is 2km north.