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| the combination of all the forces acting on an objet |
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| when two or more forces exert on an object and if their effects cancel eachother and they do not cause a change in the object's motion |
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| causes moving objects to stop |
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| type of friction that prevents an object from moving when a force is applied |
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| friction slows down an objects that slides |
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| occurs anytime an object speeds up, slows down, or changes its direction of motion |
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| tells how fast an object is moving and in what direction |
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| form of frictionthat acts to slow down any object moving in the air |
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| the point in an object that moves as if all the object's mass were concentrated at that point |
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| due to the microscopic Roughness of two surfaces |
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| In the acceleration equation, the letter(a) represents what? |
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| The letter (m) represents what? |
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| The letter (F) represents what? |
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| the condition that occurs in free fall when the weight of an object seeps to be zero |
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| the force exerted by two objects on eachother |
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| action reaction force pair |
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| What kind of force is always perpendicular to the motion and always points toward the center of the circle |
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| What Law describes something else that happens when one object exerts a force on another object? The forces always act in equal but opposite pairs |
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| What Law connects force, accleration, and mass? It tells how to calculate the acceleration of an object if its mass and the forces acting on it are known. |
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| What does Newton's first law say? |
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| if the net force is zero, the object remains at rest or contitues in a straight line |
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| The SI unit for mass is... |
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| The SI unit for acceleration is... |
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