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| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
| free fall |
| in physics, the state of a body moving solely under the influence of gravitational forces (see gravitation). A body falling freely toward the surface of the earth undergoes an acceleration due to gravity of 32 ft/sec2 (9.8 m/sec2), which is symbolized by g. |
| The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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