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PS Ch. 3
| Term | Definition |
|---|---|
| Newton's second law of motion | States that the acceleration of an object is in the same direction as the net force on the object, and that acceleration can be calculated from the following equation: |
| Friction | The force that opposes the sliding motion of two surfaces that are touching each other. |
| Static Friction | is the frictional force that prevents two surfaces from sliding past each other. |
| Sliding Friction | the force that opposes the motion of two surfaces sliding past each other. |
| air resistance | Opposes the motion of objects that move through the air. |
| Gravity | Is an attractive force between any two objects that depends on the masses of the objects and the distance between them. |
| Weight | The gravitational force exerted on an object. |
| Centripetal Acceleration | Acceleration toward the center of a curved or circular path |
| Centripetal Force | The net force exerted toward the center of a curved path |
| Newton's third law of motion | Describes action-reaction pairs this way: When one object exerts a force on a second object, the second one exerts a force on the first that is equal in strength and opposite in direction. |
| momentum | The product of its mass and velocity. |