find initial velocity and time in air

Answer:
The answer to your question is: v = 121.46 m/s
Explanation:
Data
h = 30 m
vo = ?
dx = 300 m
Formula
t = [tex]\sqrt{\frac{2h}{g}}[/tex]
speed = distance / time
Process
[tex]t = \sqrt{\frac{2(30)}{9.81}} \\[/tex]
t= 2.47 s
speed = 300 / 2.47
speed = v = 121.46 m/s