Answer with explanation:
For a falling object , displacement decreases with increase in time.
The relation between these two variables that is S and t is given by

Where, u is the initial speed of falling body and a is acceleration due to gravity which is
.
Mathematical relationship between the velocity and time of a falling object
V=u +at, where
V=Final Velocity
u=Initial Velocity
t=Time
a=Acceleration due to gravity