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.
Welcome to New Sewickley Township. New Sewickley Township is a part of depreciation lands that were set aside by Act of Assembly on March 12, 1783 to be awarded to those men who served in the Revolutionary War. Today, New Sewickley Township is a rural community consisting of 33.94 square miles with a population of approximately 7,360.