```py
from math import sqrt

# This functions provides a physics calculation to find the speed of a ball immediately after impact dropped from height `h`.
# This calculation will assume `g = 9.81` (The Gravitational acceleration constant of Earth)
# The height will assume the unit is meters (m).
def post_impact_velocity(height):
    return sqrt(2 * 9.81 * height)
```
```py
from math import sqrt

# This functions provides a physics calculation to find the speed of a ball immediately after impact dropped from height `h`.
# This calculation will assume `g = 9.81` (The Gravitational acceleration constant of Earth)
# The height will assume the unit is meters (m).
def post_impact_velocity(height):
    return sqrt(2 * 9.81 * height)
```