A.
its the train that has velocity. The people who enter the portal will not be moving?
Its like that buster keaton clip where he stands still and the side of the house falls down around him(well.. sort of)
A.
its the train that has velocity. The people who enter the portal will not be moving?
Its like that buster keaton clip where he stands still and the side of the house falls down around him(well.. sort of)
The train has absolutely no velocity relatively to the orange portal. The people are moving relatively to the orange portal.