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**Centripetal force -- Train on a curved track**

## Homework Statement

You have a circular arc of railroad track to lay on the line from Dubuque to Albuquerque. The arc of track is 30º and the turn radius for the arc is 425 meters. It has to keep the path steady and secure for an ALP-46

locomotive (m = 90,000 kg total; 22,500 kg per axle; 11,250 kg per wheel) at speed 36 m/sec.

Compute: the centripetal force that the rail must provide to one of the outside wheels for this turn at 36 m/sec.

## Homework Equations

## The Attempt at a Solution

Would this be the correct formula to use?

F = m v^2/R

11250 * 36*36 /425=34305.88

Max