- #1
hprog
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Suppose we have two objects A and B in uniform motion according to each other with velocity v (A claims B to in motion with velocity v and B claims A to be in motion with velocity v).
After a while a big gravity field G appears on the site, and the escape velocity of objects in the field of G is u, where u < v.
As such the object at rest would naturally fall into the gravity field while the object in motion would escape since v > u.
But relativity says that each one of A and B can claim itself to be at rest while claiming the other in motion, which means that both of them claim that they will fall into the gravity field while the other one is to escape.
Clearly only one of them can be right, so how is this being explained with relativity?
After a while a big gravity field G appears on the site, and the escape velocity of objects in the field of G is u, where u < v.
As such the object at rest would naturally fall into the gravity field while the object in motion would escape since v > u.
But relativity says that each one of A and B can claim itself to be at rest while claiming the other in motion, which means that both of them claim that they will fall into the gravity field while the other one is to escape.
Clearly only one of them can be right, so how is this being explained with relativity?