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 city in Sarpy County, Nebraska, United States. The population was 1,450 at the 2000 census. Springfield is located at 41Â°4â²56â³N 96Â°7â²57â³W / 41.08222Â°N 96.1325Â°W / 41.08222; -96.1325 (41.082245, -96.132431). According to the United States Census Bureau, the city has a total area of 0.6 square miles (1.4 kmÂ²), all of it land.