The gravitational force is the attractive force which pulls the object towards the surface. The heavy weight objects falls sooner than the light weights, because the air resistance affects the lighter object and affects the heavier object less. The speed of a free falling object equation is to find the speed of the falling object. The free fall speed formula is the product of gravitational constant which is 9.8 m/s2 and the time taken for the object to reach earth's surface.
The free fall speed formula is calculated based on the time taken by the object. The speed of a free falling object equation to calculate the speed is provided above, click the link of the calculator, to find the speed of the falling object.