The numerical value for gravitational acceleration on Earth is approximately 9.81 meters per second squared (m/s²).

It's important to note:

* This is an approximation. The actual value varies slightly depending on location (altitude, latitude, etc.).

* It's a constant acceleration. This means that every second, the speed of a falling object increases by 9.81 m/s.

This value is often rounded to 9.8 m/s² or 10 m/s² for simplicity in calculations.