- #1
Pelion
- 35
- 0
Hi all,
Consider the following SR scenario:
In a frame S: A ball is resting on a platform that is parallel to the x axis. The platform is moving downward at a constant velocity parallel to the y axis. We assume a constant gravitational field whose lines of force are parallel to the y axis.
In a frame S': An observer moves with relativistic velocity, relative to S, parallel to the x axis.
The observer in S' will observe a tilted platform.
How does he explain the fact that he ball doesn't roll off the platform?
For S', it seems, there must arise a velocity-dependent 'extra-gravitational' force to keep the ball in place, in addition to the usual gravitational force. Is this true? If so, is this significant and thus far not noticed?
Cheers
Consider the following SR scenario:
In a frame S: A ball is resting on a platform that is parallel to the x axis. The platform is moving downward at a constant velocity parallel to the y axis. We assume a constant gravitational field whose lines of force are parallel to the y axis.
In a frame S': An observer moves with relativistic velocity, relative to S, parallel to the x axis.
The observer in S' will observe a tilted platform.
How does he explain the fact that he ball doesn't roll off the platform?
For S', it seems, there must arise a velocity-dependent 'extra-gravitational' force to keep the ball in place, in addition to the usual gravitational force. Is this true? If so, is this significant and thus far not noticed?
Cheers