- #1
davidfrankli32
- 6
- 1
Can anyone answer this question: In the context of GR, If two objects are in collinear free fall, far enough apart so that the field intensity differs for each object, and one measures the relative velocity between the objects in the coordinate system of the objects using (say) a radar system falling with one of the objects, will it be found that there is a time invariant velocity between them as measured by the radar, or will the velocity difference measured this way be time variant?