This means that for every second an object falls freely towards Earth, its velocity increases by 9.81 meters per second.
However, it's important to note:
* This value is an average. The actual gravitational field strength varies slightly depending on location (altitude, latitude, local geology).
* This value is for the acceleration due to gravity, which is the force per unit mass exerted by Earth's gravitational field.
* Gravitational field strength is often used interchangeably with acceleration due to gravity, but technically they are different concepts.
