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free fall

   Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson 0.04 sec.
free fall, in physics, the state of a body moving solely under the influence of gravitational forces (see gravitation gravitation, the attractive force existing between any two particles of matter .

The Law of Universal Gravitation



Since the gravitational force is experienced by all matter in the universe, from the largest galaxies down to the smallest particles, it
..... Click the link for more information. ). A body falling freely toward the surface of the earth undergoes an acceleration acceleration, change in the velocity of a body with respect to time. Since velocity is a vector quantity, involving both magnitude and direction, acceleration is also a vector. In order to produce an acceleration, a force must be applied to the body.
..... Click the link for more information.  due to gravity of 32 ft/sec2 (9.8 m/sec2), which is symbolized by g.

free fall

In mechanics, the state of a body that moves freely in any manner in the presence of gravity. The planets are in free fall in the gravitational field of the Sun. A body in free fall follows an orbit such that the sum of gravitational and inertial forces equals zero. See also gravitation; Newton's laws of motion.
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Our PG-300 pump is utilized in gravity pouring lines where you can have minimal free fall of the molten metal into your molds.
Automated pouring by Modern Casting
But a dramatic free fall in cash cattle prices is not likely given the relatively tight supply of Choice-graded animals.
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One experiment that I will describe tested the equivalence of free fall for different masses in response to local attracting matter (the Earth) rather than to more distant matter (the Sun, which has been used in recent equivalence tests).
The measurement of little g: a fertile ground for precision ... by Faller, James E. / Journal of Research of the National Institute of Standards and Technology
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