Answer:
Final speed of the ball = Vf= 12.52 m/s when it hits the ground
Step-by-step explanation:
Height = S= 8.0 m
Initial Velocity= Vi = 0 m/s
Final Velocity= Vf =?
Acceleration due to gravity= a=9.8m/s²
Using Newtons third equation of motion
2as= Vf²- Vi²
2(9.8) 8= Vf²- 0
156.8= Vf²
Vf=√156.8= 12.52m/s
Final Speed of the ball is 12.52 m/s