A broad gauge train runs at a speed of 72 km/h on a curved track of radius of curvature 1 km. Find the elevation of the outer rail above the inner rail so that there may be side-pressure on the rails ? Distance between the rails is 1.7 m.

A broad gauge train runs at a speed of 72 km/h on a curved track of ra

1.	A broad gauge train runs at a speed of 72 km/h on a curved track of radius of curvature 1 km. Find the elevation of the outer rail above the inner rail so that there may be side-pressure on the rails ? Distance between the rails is 1.7 m.
Answer» Solution :The ELEVATION of outer rail over the inner rail is `h = (V^(2)L)/(rg) = (20 xx 20 xx 1.7)/(1000 xx 9.8) = 0.0694 m`