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☜☆☞ A free fall motion means that the object is falling from a height under the influence of gravity only. It falls only due to its weight and not any other force. Provided these conditions the object experiences a free fall. 
It is observed that in a free fall :-
▶▶Free-falling objects do not encounter air resistance.
▶▶All free-falling objects (on Earth) accelerate downwards at a rate of 9.8 m/s/s (often approximated as 10 m/s/s for back-of-the-envelope calculations)
▶▶You can assume in numerical calculations that the object started from v=0 m/s velocity.

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