Question

Complete free fall cannot be observed in the surface of the earth

Answer 1

Answer:

It is because of the air resistance on the surface of the earth.

Explanation:

Answer 2

Answer:

Unrestrained response to gravity is free fall. However, falling objects in the Earth's atmosphere are constrained by air resistance or drag and eventually arrive at a fixed terminal velocity.

Explanation:

Free fall only happens when gravity is the only force acting on an object, according to the definition of the term, which is "Downward movement under the force of gravity only." On Earth, however, air resistance also affects an object when it is hurled off a building, for example, in addition to gravity. An object can only experience gravity when it is in close proximity to another mass-containing object in deep space.

Near the surface of the Earth, an object in free fall in a vacuum will accelerate at approximately $9.8 m/s^{2}$, independent of its mass.  This demonstrated Galileo's discovery that, in the absence of air resistance, all objects experience the same acceleration due to gravity.

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