What does it mean to say that momentum is conserved? when momentum or any other object in physics doesn't change..... momentum = momentum before and after the collision. Elastic collision
The 2016 Springfield, Illinois, population is 116,565. There are 1,955 people per square mile (population density). The median age is 38.7. The US median is 37.4. 44.11% of people in Springfield, Illinois, are married. 14.83% are divorced.
Sponsored Topics. Springfield is a census-designated place in Fairfax County, Virginia, United States and a suburb of Washington, D.C. The Springfield CDP is recognized by the U.S. Census Bureau with a population of 30,417 as of the 2000 census. Springfield is located at 38Â°46â²45â³N 77Â°11â²4â³W / 38.77917Â°N 77.18444Â°W / 38.77917; -77.18444 (38.779238, -77.184636).