Thanks waspy, I changed that first post to Radius. you were correct and I thank you for Pointing it out
looking at you method of calculation. I understand what you are doing. you are getting the 251 by dividing the m/s by the radius. seems to come to the same answer (Similar).
Mathew. Thanks again.
here is what I think I have. is the 9.81 an exact # or an Approximation.
8.885kg
is the 9.81 because we are being lightened a little due to earth rotation?
I think dantruck has something there. Though, I think it may be easier to use two pieces of buttered bread or two cats (this would give a truly = and Opposite Force)