Question

Read this because I need help pleaseeeeee !!!

Answer 1

There are several formulas that describe the distance, speed, and time for
a falling body.  The one I use the most happens to be the one that'll be the
most useful to solve this problem:

                                Distance = 1/2 g t²

We know the distance and we know ' g ', so we can use
this formula to find ' t '.

                                 Distance = (1/2) (gravity) (time)²

                                   (239 m) = (1/2) (3.7 m/s²) (time)²

Divide each side
by  1.85 m/s² :            (129 m) / (1.85 m/s²)  =  (time)²

                                   (129/1.85)  sec²  =  (time)²  

Take the square root
of each side:                    8.35 sec  =  time