Freefall is defined as a situation when a body is moving only under the influence of the earth’s gravity. Since external force is acting on the ball, the motion will be accelerated. This free-fall acceleration is also known as acceleration due to gravity.
Acceleration due to free fall
Acceleration of free fall is the acceleration experienced by the freely falling body the effect of gravitation of earth alone or the acceleration of a body falling freely in a vacuum near the surface of the earth in the earth’s gravitational field: It is also called acceleration due to gravity.
Its value on earth g = 9.8 m/s 2