How do I calculate the radial acceleration in g's?

Question

For example: Calculate the radial acceleration (in g’s) of an object on the ground at the earth's equator, turning with the planet. Earth's radius is 6380 km.

Answer 1

v^2/R

or omega^2 R

omega = 2 pi (1 revolution/(24*3600 seconds)

so omega^2 = 5.29*10^-9

R = 6.38*10^6 meters

so omega^2 R = .0337 m/s^2
(not much, about g/300)