PhyFl18SS1.6.3 A displacement vector (or any vector for that matter always starts at the begining and is a straight arrow to the end. The path that the object takes does not matter. ∆s in blue is a displacement vector. It only cares about the beginning position and the final position. The displacement vector of my life would start in Ponca City Hospital and probably end where I am teaching at NHS. It doesn’t care where I have visited and lived in my life. It only cares about where I was born and where I died. It would be a 124 milelong straight displacement vector.