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15 Cards in this Set
- Front
- Back
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friction
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resistance to motion (force)
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translatoinal equilibrium
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sum of all forces ating on 1 object equals 0
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static friction
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force required to get an object moving
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frictional force
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proportional to the normal force
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sliding friction
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(kinetic)
force required to help an object moving |
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force
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produces changes in motion
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balanced force
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net force = zero
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newtons 3rd law of motion
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for every force (action) there is an equal and opposite force (reactoin)
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normal force
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a contact force exerted by an object on another in a direction perpendicular to the surface of contact
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coefficient of friction
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depends on type/nature of both surfaces
-unitless |
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unbalanced force
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nonzero net force
results in acceleration in the direction of unbalanced force |
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net force
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sum of all forces acting on a body
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inertia
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the tendancy of a body to resist changes in its motion
-->mass is a measure of inertia<-- |
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newtons 1st law
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law of inertia
-a body of rest remains at rest and a body of motion remains in motion w/ constant velocity |
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newtons 2nd law
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acceleration of object is directly proportional to the NET force and inversly proportional to its mass. direction of acceleration is in the direction of applied net force.
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