This value is just a standard value used for the definitions of some units (for example, in the conversion between pounds-force and newtons). The acceleration due to gravity g at the surface of th...This value is just a standard value used for the definitions of some units (for example, in the conversion between pounds-force and newtons). The acceleration due to gravity g at the surface of the Earth varies over the surface of the Earth for a number of reasons: Also, the Earth has an equatorial bulge due to its rotation, so that you're farther from the center of the Earth near the equator.
