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The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object.
Acceleration and Weight
Newton's second law of motion explains the weight of objects. Weight is a measure of the force of gravity pulling on an object of a given mass. It's the force (F) in the acceleration equation that was introduced above: a = F m This equation can also be written as: F = ma
The acceleration due to gravity of an object equals 9.8 m/s2, so if you know the mass of an object, you can calculate its weight as: F = m 9:8 m/s2 .2.
As this equation shows, weight is directly related to mass. As an object's mass increases, so does its weight. For example, if mass doubles, weight doubles as well.
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