Minecraft wiki entry for Minecart, associated text: Using this glitch can be far more resource-efficient since the boat minecart can move at the speed of a powered rail track on flat ground and on slopes. Another physics glitch with the boat minecart is the extreme reduction in friction when the minecart is on rails, which is similar to the lack of friction when a boat is riding on ice. This glitch can be done in survival without cheats simply by pushing a minecart into a boat on the track.