Assuming the object is dropped from a stationary position,

velocity V = the square root of ( 2 times f times S )

In metric system, V=m/second, f=9.75, S = height from which object is dropped (in metres )

In imperial system V=feet/second, f=32, S= height dropped from in feet

velocity V = the square root of ( 2 times f times S )

In metric system, V=m/second, f=9.75, S = height from which object is dropped (in metres )

In imperial system V=feet/second, f=32, S= height dropped from in feet