Mostly the same as it would work on a car with a brake shoe applied to the steel wheel. The only major difference is that they often use a safety air brake sys

Mostly the same as it would work on a car with a brake shoe applied to the steel wheel. The only major difference is that they often use a safety air brake system shared across an entire consist (train) that requires “charged” pressure (above atmosphere) to disengage the brake (although I think they have moved to an electronic system that now monitors air pressure in each car individually).