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12 Cards in this Set

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Newtons First law
the law of inertia; an object will remain at rest or in uniform motion unless acted on by an unbalanced force.
Static Equilibrium
remains motionless when acted on by forces
Dynamic equilibrium
remains motionless when acted on by forces
Newtons second law
the law of acceleration; the acceleration of an object is proportional to the net forces acting on it and inversely proportional to its mass.
Newtons 3rd law
– the law of reaction; for every action there is an equal and opposite reaction.
Concurrent force system
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
Resultant force is also known as
vector
Distraction Force is
a net force that moves an object (bony segment) away from an adjacent object (bony segment).
Tensile force is
forces that create opposite pulls on an object; opposite forces are necessary to create tension. (ligaments and joint capsules)
Contact force is
reaction forces resulting from the push of one object against another; aka joint reaction forces when it involves two contiguous joint surfaces
Compression force is
two forces that cause joint reaction forces.
Force equals...
Mass x Acceleration