Free fall is downward movement under the force of gravity only.
Free falling objects do not encounter air resistance.
All free falling objects accelerate downwards at a rate of 9.8 m/s/s
There are four Kinematic equations...
Each variable has a specific meaning, d stands for the displacement; t stands for the time; a stands for the acceleration of the object; vi stands for the initial velocity value, and vf stands for the final velocity.
All objects fall at the same rate no matter their size or mass