[Phys-l] 9.80 vs. 9.81

[Larry Smith <larry.smith@snow.edu>]

The value of g at my location is less than 9.80 m/s^2, and Randy Knight
uses 9.80 in his textbook, but NIST says the accepted value for standard
gravity is 9.80665 which rounds to 9.81.  Most textbooks use 9.81 when they
want three sig-figs (but not Knight).

Any thoughts?

Thanks,
Larry