Answer:
The answer to your question is vf = 70 m/s
Explanation:
This is a free fall problem and in these kinds of problems, the mass is not important to calculate the speed.
Data
mass = 120 kg
height = 250 m
g = 9.81 m/s²
Formula
h = [tex]\frac{vf^{2}}{2g}[/tex]
Solve for vf
vf² = 2gh
vf = [tex]\sqrt{2gh}[/tex]
Substitution
vf = [tex]\sqrt{2(9.81)(250)}[/tex]
Simplification
vf = [tex]\sqrt{4905}[/tex]
Result
vf = 70 m/s
