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12 Cards in this Set
- Front
- Back
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Newtons First law
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the law of inertia; an object will remain at rest or in uniform motion unless acted on by an unbalanced force.
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Static Equilibrium
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remains motionless when acted on by forces
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Dynamic equilibrium
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remains motionless when acted on by forces
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Newtons second law
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the law of acceleration; the acceleration of an object is proportional to the net forces acting on it and inversely proportional to its mass.
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Newtons 3rd law
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– the law of reaction; for every action there is an equal and opposite reaction.
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Concurrent force system
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the lines of force are at angles to each other and converge at some point either internal or external to the object. Any two forces in a concurrent system can be composed into a single
**most common in body |
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Resultant force is also known as
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vector
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Distraction Force is
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a net force that moves an object (bony segment) away from an adjacent object (bony segment).
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Tensile force is
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forces that create opposite pulls on an object; opposite forces are necessary to create tension. (ligaments and joint capsules)
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Contact force is
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reaction forces resulting from the push of one object against another; aka joint reaction forces when it involves two contiguous joint surfaces
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Compression force is
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two forces that cause joint reaction forces.
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Force equals...
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Mass x Acceleration
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