Question 292547
Assuming the object is falling under the action of gravity, started with zero velocity, and has not reached terminal velocity, then you can use this equation to calculate the distance dropped.
{{{h=(1/2)gt^2}}}
where g=9.8 m/s^2 is the gravitational constant.
{{{h=(1/2)(9.8)45^2=9922.5}}}
.
.
.
9922.5 meters