Zanthius wrote:
On Feb 1, 7:41 pm, dlzc wrote:
Yea, too bad that "acceleration by gravity" is fundamentally
different than acceleration by a force system.

Well, suppose that the earth is growing in size in such a way that the
surface of the planet is accelerated upwards in all directions at 9,81
m/s2. How would this be different from an object falling towards the
earth at 9.81 m/s2?

Well, for one thing, you couldn't see the "accelerating
force" until/unless you were in contact with the surface.

Bob M.