cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Showing results for 
Search instead for 
Did you mean: 

Community Tip - You can Bookmark boards, posts or articles that you'd like to access again easily! X

New York - San Francisco Tunnel (движение по подземному прямому тоннелю гравитационного поезда Нью-Йорк - Сан-Франциско)

ValeryOchkov
24-Ruby IV

New York - San Francisco Tunnel (движение по подземному прямому тоннелю гравитационного поезда Нью-Йорк - Сан-Франциско)

A train leaves New York at 9:45am EDT, heading for San Francisco...

The train system consists of a straight-line tunnel connecting the two cities. The train uses a MAGLEV (magnetic levitation) system consisting of permanent magnets in the tracks and superconductive electromagnets in the train. To accelerate it uses a combination of electromagnetic force and gravitational pull of the Earth. The deceleration comes also from the gravitational pull of the Earth, as well as aerodynamic drag of the train.

Problem: Compute the arrival time in San Francisco assuming constant propulsion force.

Video Link : 5750

Mathcad 15 file in attach

3 REPLIES 3

One article about this problem: http://twt.mpei.ac.ru/ochkov/Tunnel.pdf

One article about this train http://hrcak.srce.hr/file/203334

Calculations with Russian Mathcad

Earth-L-S.png

Top Tags