In Rail tracks the outer rail track is raised in curve a little above the inner rail track . what is the reason ?

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Nithyananda Nayak

When the outer rail of the curved railway back is raised, the weight of the train gives a component of its weight along the radius of the curved track. This component of the weight provides the train the necessary centripetal force so as to enable it to move along curved path.
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Due to centrifugal force this is happened to avoid accident.
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Physics Educator with more than a decade of teaching experience (CBSE, ICSE, IBDP, SAT, AP-C etc)

The curve will actually tilt a train slightly. This will make sure that you have a component of the weight parallel to the ground. It is this component of the weight which will provide the necessary centripetal force for the train to move on a circular path. Otherwise, the required centripetal force...
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The curve will actually tilt a train slightly. This will make sure that you have a component of the weight parallel to the ground. It is this component of the weight which will provide the necessary centripetal force for the train to move on a circular path. Otherwise, the required centripetal force will be provided by the contact forces between the wheels and rails which will cause much wear and tear. Hope this helps ! read less
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This is becoz to manage the forces that are acting on a body and keep the body intact or in equilbrium without falling .
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