Question

Define free fall. What are the conditions for an object to be under free fall? Also give the value for the
acceleration experienced by the object under free fall.​

Answer 1

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According to Newton's universal gravitational law, the force of gravitation exerted by the Earth is equal to G (universal gravitational constant) multiplied by Mass of the Earth(M) multiplied by Mass of the object(m) divided by the radius squared(r²) and by Newton's second law of motion force due to gravitation is equal to Mass of the object (m) multiplied by acceleration due to gravity (g).

F(gravitational)= G.M.m/r²=mg

cancelling out the Mass of the object (m)

we find that g=G.M/r²

therefore the acceleration experienced by an object during free fall is independent of its mass

Answer 2

Explanation:

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A free-falling object has an acceleration of 9.8 m/s/s, downward (on Earth). This numerical value for the acceleration of a free-falling object is such an important value that it is given a special name. ... The numerical value for the acceleration of gravity is most accurately known as 9.8 m/s/s.