If an object is dropped, the relationship between the distance it falls and the time that it has been falling is given by:

 d=12gt2\displaystyle {d}=\frac{{1}}{{2}}{g}{t}^{{2}} 

where:
d\displaystyle {d}  is the distance the object falls, in feet
t\displaystyle {t}  is the time the object falls, in seconds
g\displaystyle {g}  is a constant due to gravity, 32.2 ft/sec2

Standing on top of a 95 feet tall cliff, you drop a rock.  How long will it take to hit the ground?  Round to 2 decimal places.

seconds