World Fastest Train Escape

You work as an engineer - a tester for a large organization that is engaged in the design and construction of high-speed trains. Your new project is the train, which promises to be the fastest in the world. It is completely constructed and now you need to make a test run to evaluate the performance of all systems. When the train was dispersed, you notice that the braking system is broken. You must leave the train until he scored the maximum speed.