The momentum of an object and its change in momentum during a time interval are shown below. p→i Δp→ Move the Δp→ arrow below as needed, then move the p→f arrow such that it represents the momentum of the object at the end of the time interval. Note that the three vectors are actually co-linear, but the arrows below are at different heights so that they can be viewed without any overlapping. The dotted segments are guides for aligning the ends of the arrows.