Question 1181322
.



            Unfortunately,  the solution by  @Boreal is incorrect.


            I came to bring you the correct solution,  changing his formulas and calculations.



<pre>
How long does it take to reach the ground?


    s = {{{(1/2)*(gt^2)}}}

    so  t = {{{sqrt(2s/g)}}} = {{{sqrt((2*12)/9.81)}}} = 1.564 seconds to hit the ground.



The horizontal distance is the distance it travels in that time period or 1.564*1.8,  or  2.815 meters  (rounded).
</pre>

Solved.