What is the standard value of gravitational acceleration?

The standard value of gravitational acceleration at or near the Earth's surface is approximately 9.8 m/s². This value represents the acceleration that objects experience due to Earth's gravity when they are in free fall, neglecting air resistance.

This standard value is derived from measurements taken around the globe and is widely accepted in scientific contexts. While the value can vary slightly depending on geographic location due to factors such as altitude and local geological variations, 9.8 m/s² serves as the commonly referenced standard for calculations in physics and engineering related to gravitational effects.

Other values might seem plausible, but they either round the value too roughly or misrepresent the actual average acceleration due to gravity experienced on Earth. Using the accurate value is crucial for precise calculations in various applications, such as projectile motion, free-fall scenarios, and other calculations involving gravitational forces.