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Mass and Weight Review and Equations
The mass (m) of a body is the measure of the amount of material present in that body. The weight (wt) of a body is the force exerted by that body when its mass is accelerated in gravitational field. Mass and weight are related as shown in following
Note that gc has the same numerical value as the acceleration of gravity at sea level, but is not the acceleration of gravity. Rather, it is a dimensional constant employed to facilitate the use of
Newtons Second Law of Motion with the English system of units.
The weight of a body is a force produced when the mass of the body is accelerated by gravitational acceleration. The mass of a certain body will remain constant even if the gravitational
acceleration acting upon that body changes.