Westinghouse developed the air brake for trains.
Kinetic friction is the force that stops a train when the brakes are applied
The oil lubricator and brakes were invented in 1872.
The oil lubricator and brakes were invented in 1872.
George Westinghouse invented the air brakes
The answer depends on the mass of the train and the force applied by the brakes.
Assuming that the brakes are not "dragging" they start exerting force on the wheels when they are applied by the engineer.
While Elisha (Eli) Otis invented the elevator brakes, the elevator was invented by someone else.
Train was invented first.
the bullet train was invented in 1994
In 1749 the first wagon train was invented.
no one, they were invented