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Railway tracks are banked at the curves so that the necessary centripetal force may be obtained from the horizontal component of the reaction on the train.
- a)true
- b)false
- c)cannot predict
- d)none of these
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Railway tracks are banked at the curves so that the necessary centripe...
Understanding Banked Curves
When trains navigate curves, banking the tracks is essential for safety and efficiency. This design helps manage the forces acting on the train as it travels around a curve.
Why Are Tracks Banked?
- Centripetal Force: When a train goes around a curve, it requires a centripetal force to change direction. This force is perpendicular to the train's motion and directed towards the center of the curve.
- Horizontal Component of Reaction: The banking of the tracks creates an angle between the vertical and the track surface. This angle allows the normal reaction force from the track to have a horizontal component that provides the necessary centripetal force.
Benefits of Banking
- Reduced Lateral Friction: By banking the tracks, the need for friction between the train's wheels and the track is minimized. This reduces wear and tear on both the train and the tracks.
- Enhanced Stability: Properly banked curves allow trains to maintain higher speeds without the risk of derailing, as the forces are balanced effectively.
- Improved Comfort: Passengers experience less lateral acceleration, making the ride more comfortable.
Conclusion
In summary, the statement that railway tracks are banked at curves to obtain the necessary centripetal force from the horizontal component of the reaction is indeed true (option 'A'). This engineering design is crucial for the safe and efficient operation of trains on curved tracks.
When trains navigate curves, banking the tracks is essential for safety and efficiency. This design helps manage the forces acting on the train as it travels around a curve.
Why Are Tracks Banked?
- Centripetal Force: When a train goes around a curve, it requires a centripetal force to change direction. This force is perpendicular to the train's motion and directed towards the center of the curve.
- Horizontal Component of Reaction: The banking of the tracks creates an angle between the vertical and the track surface. This angle allows the normal reaction force from the track to have a horizontal component that provides the necessary centripetal force.
Benefits of Banking
- Reduced Lateral Friction: By banking the tracks, the need for friction between the train's wheels and the track is minimized. This reduces wear and tear on both the train and the tracks.
- Enhanced Stability: Properly banked curves allow trains to maintain higher speeds without the risk of derailing, as the forces are balanced effectively.
- Improved Comfort: Passengers experience less lateral acceleration, making the ride more comfortable.
Conclusion
In summary, the statement that railway tracks are banked at curves to obtain the necessary centripetal force from the horizontal component of the reaction is indeed true (option 'A'). This engineering design is crucial for the safe and efficient operation of trains on curved tracks.
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Railway tracks are banked at the curves so that the necessary centripe...
Railway tracks are banked at curves to help the train negotiate the curve safely. The banking of the tracks ensures that the necessary centripetal force is provided by the horizontal component of the normal reaction force from the track. This reduces the reliance on friction between the train wheels and the track, allowing trains to travel safely around curves at higher speeds.
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