free fall

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free fall • n. downward movement under the force of gravity only: the path of a body in free fall. ∎  the part of a parachute-descent before the parachute opens. ∎  the movement of a spacecraft in space without thrust from the engines. • v. (free-fall) [intr.] move under the force of gravity only; fall rapidly.

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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.