Answer:
13.42 m/s
Step-by-step explanation:
To find the speed when it hits the ground, we will use the following equation
Where vf is the final velocity, vi is the initial velocity, a is the acceleration due to gravity, and Δy is the height.
Replacing vi = 0 m/s, a = 10 m/s², and Δy = 9.0 m, we get:
Therefore, the speed when it hits the ground is 13.42 m/s