Integrating the velocity with respect
to time t gives the distance function.
Therefore, the function of the distance is
The droplet is dropped from 800 m, so s0 is 800. Substituting t = 10 and s0 = 800 into the distance function gives the value of s10.
Rearranging this equation gives
s10 = 900
Substituting s0 = 800 and s10 = 900 into the
distance function gives