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Motion

In the law, a motion is a procedural device to bring a limited but contested matter before a court for decision.

In physics, motion means a change in the position of a body with respect to time, as measured by a particular observer in a particular frame of reference. Only relative motion can be measured; absolute motion is meaningless. See also equation of motion, Newton's laws of motion.

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... also called the roots of the equation. The formula reads <math> x=\frac{-b \pm \sqrt {b^2-4ac}}{2a} </math> The term b2 – 4ac is called the ...