General Knowledge - Physics - Discussion

Curved roads are always banked to get necessary centripetal force.

Centripetal force is a force that is directed towards center of circle. Railway tracks are banked to avoid centrifugal reaction. Which avoid accidents.

Have you been on one of those merry-go-rounds? When you are moving at full speed, you would observe that the strings would be extended outside, you would feel like you would almost fall and there is the excitement.

The reason for this to happen is because of the presence of centrifugal force that tends to push the circularly moving object away from the center. The same thing happens when a train is moving at a fast pace over a curve. On a flat track, the train would experience pushing and that can move the center of gravity away. To counter this, the curves are banked in order to get the trains to slightly tilt towards the interior so that the centrifugal force can be countered.