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Newton's First Law (Chapter 2)
Key Concept from Chapter 2 of Contemporary Physics
5
Physics
Undergraduate 1
11/14/2010

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Term
Inertia
Definition
The property of objects to resist changes in motion. Measured as mass.
Term
Force
Definition
A push or a pull.
Term
Net Force
Definition
The vector sumof all forces acting on an object
Term
Mechanical Equilibrium
Definition
The state of an object or system of objects for which there are no changes in motion. Note: "no changes in motion" is not the same thing as "no motion." A moving object that has no changes moves in a straight line at constant speed.
Term
Equilibrium Rule
Definition
If an object is in mechanical equilibrium, the sum of the forces acting on it is zero.
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