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A train is moving with a speed of on rails which are apart. To negotiate a curve radius , the height by which the outer rail should be raised with respect to the inner rail is (given ____).

Answer :

To find the optimal speed for a train on banked tracks with a known radius and banking angle, one can use the formula v = √(R * g * tan(θ)). This calculates the speed that ensures the train will not derail due to centrifugal force when navigating the curve.

To negotiate a curve with a certain radius, trains must maintain an optimal speed that depends on the radius of the curve and the banking angle of the tracks. For instance, railroad tracks that follow a circular curve of radius 500.0 m and are banked at an angle of 5.0° are designed for trains moving at a specific speed. This optima speed can be calculated using the principles of centripetal force and the physics of motion along curved paths.

Banking angle, radius of curvature, and the force of gravity work together to ensure the train does not derail when taking turns. To calculate the designed speed, one would typically use the equation that relates the banking angle (θ), the radius of the curve (R), and the gravitational acceleration (g). Without friction, the speed (v) for which the tracks are designed is calculated as:

v = √(R * g * tan(θ))

Where θ is the banking angle, R is the radius of the curve, and g is the acceleration due to gravity (approximately 9.81 m/s²). In applying this to a real-world situation, toy trains like Lionel brand toy trains, which come with tracks of certain diameters, are operated at maximum speeds to prevent derailing on curves. The maximum speed must be adjusted based on the curve's radius to maintain a safe centrifugal balance.

For the example of railroad tracks with a radius of 500.0 m and a banking angle of 5.0°, using the formula provided would help us determine the safe operating speed for trains on such tracks. It's an important concept in the field of mechanical engineering as well, which involves the design and construction of safe transportation systems.

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