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.
Springfield, MO Population and Races. As of 2010-2014, the total population of Springfield is 162,333, which is 7.09% more than it was in 2000. The population growth rate is lower than the state average rate of 7.74% and is lower than the national average rate of 11.61%.