Blue or black are my favorites
In "A Quilt Of A Country", Quindlen's point in comparing present-day New York with Philadelphia in her father's time is that in America, there is a clinging to the ethnicity, in background and custom, that has undermined the concept of unity. In her father's time in Philadelphia, Jewish boys would walk several blocks out of their way to avoid the Irish divide of Chester Avenue. I hope this helps.
Distance is how much you traveled from begin to end so if you traveled along a road that was 500 m twice then your distance is 1000 m
displacement is change in position between your starting and ending points and since you started and ended at the same place then your displacement is 0<span />