This is a nice example that also makes me think more questions.
Will the hole punching be forward or backward?
Assuming infinite deceleration, for an observer on the other end of the barn, will the barn be punched through, before or after the pole-pusher has stopped?
For the pole-pusher, will the barn be punched through, before or after it has stopped?
This is a nice example that also makes me think more questions.
Gets more interesting