Question
A boy walks 10m due west and then 10due south.calculate it's displacement.
Answers
oobleck
surely you drew a diagram. If so, it should be clear that you have
displacement = √(10^2+10^2)
direction WθS, where tanθ = 10/10
displacement = √(10^2+10^2)
direction WθS, where tanθ = 10/10