Answer / vikrant kumar

The train takes turn because of the specific design of the wheels,As on looking the wheels from close we see that they are slightly tapered.Now when there is a turn,because of the centripetal/centrifugal force,the wheels along with the train shifts a little laterally on the track.This shifting cause the wheel contact on the track to change for both wheels.While the radius of wheel in contact with the tract increases for the outer wheels,it decreases for the inner ones.As both the wheels are connected to axle and are rotating with the same angular speed,the velocity which is product of radius and angular velocity changes for outer wheels and inner wheels.This causes difference and makes the train to take turn without any use of differential gears.

Answer / tom

Actually Train will not take a turn it just follows the
path of the rail Track.

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