Momentum is conserved in case of motion under gravity because a object is pulled by the earth and the earth of pulled by the object. The momentum terms of the object and earth cancel each other out as the object has small mass but high velocity and the earth has very high mass and very small velocity in the opposite direction of the velocity of the object.
Southwick, Massachusetts. Southwick is a town in Hampden County, Massachusetts, United States. The population was 9,502 at the 2010 census. It is part of the Springfield, Massachusetts Metropolitan Statistical Area.
South Boston is a City in Halifax County, Virginia with a population of 8,037. There are 3,103 households in the city with an average household size of 2.42 persons. 44.02% of households in South Boston are renters. Income and Rent Overburden in South Boston. The median gross income for households in South Boston is $31,238 a year, or $2,603 a month.