What is the value of the acceleration due to gravity during free fall on Earth?

The value of the acceleration due to gravity during free fall on Earth is approximately 9.8 m/s². This value represents the rate at which an object accelerates towards the Earth when it is in free fall, meaning that it is only under the influence of gravity and not experiencing any other forces, such as air resistance.

This acceleration is a vital constant in physics, often denoted by the symbol "g". It reflects the gravitational pull that Earth exerts on objects at or near its surface. The commonly used value of 9.8 m/s² is an average; while it can vary slightly depending on geographical factors such as altitude, the global average remains close to this figure.

In other contexts, 9.8 N/kg is also a correct representation of the acceleration due to gravity, since 1 N/kg equals 1 m/s². However, in the context of the question focusing on acceleration, the best discrete answer is 9.8 m/s². Choices like 10.0 m/s² are simplifications that are sometimes taught for easier mental calculation, while other values provided are significantly inaccurate compared to the established standard.