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-----Original Message-----
From: phys-l-bounces@carnot.physics.buffalo.edu [mailto:phys-l-
bounces@carnot.physics.buffalo.edu] On Behalf Of John Mallinckrodt
Sent: Tuesday, November 08, 2011 12:17 PM
To: Forum for Physics Educators
Subject: Re: [Phys-l] definition of gravity
In GR, the thing Newton calculates as GM/r^2 is simply the *relative*
acceleration of inertial (i.e., freely-falling) frames located at 1) the center of a
spherically symmetric object of mass M and 2) some distance r from the
center and beyond the surface of the object. It quantifies the effect of the
spacetime curvature in between those two points.
John Mallinckrodt
Cal Poly Pomona
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