@Motor Daddy
let's assume your theory is correct.....
A rock on equator will weigh less in england, and even less in Greenland......(Circular momentum, ther force around the bulgde of earth mid section will have the highest velocity.... just like the naw and egde of a wheel.)
Yes, the equator will have the highest velocity, but there are other factors to consider.
1. The distance the object is from the axis.
2. The RPM of the body.
3. The density of the body.
4. The density of the "atmosphere."
5. The "thickness" of the atmosphere.
6. The mass, density, and RPM of the "changing" body.
7. The velocity of the object and the new velocity of the object.
8. The "slippage" caused by the difference in rotation of the earth and the object. The atmosphere is not a solid, so there is a global "force" extending out of the planet due to its atmosphere. The atmosphere is not as strong as dirt, so it has "slippage" as it is forcing the object out.
There are probably some other factors too. I'm sure a good mathematician like AN could whip up an equation rather quickly for my idea.
since a 1 kg. rock weighs the same in England, Island, Greenland, Australia, India and oh the entire world........ your theory is wrong.
If the same mass object was at two different distances from the axis then they were each traveling a different velocity as they travel with the earth. The mass closer to the axis has a higher acceleration because it has to rotate the same revolution per unit of time as the other object that is further away from the axis. The mass closer has a higher acceleration but a lower velocity. The net effect is the same weight. Do you see what I am saying?