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  2. Inclined plane - Wikipedia

    en.wikipedia.org/wiki/Inclined_plane

    An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle from the vertical direction, with one end higher than the other, used as an aid for raising or lowering a load. [1] [2] [3] The inclined plane is one of the six classical simple machines defined by Renaissance scientists. Inclined planes are used to move ...

  3. Free body diagram - Wikipedia

    en.wikipedia.org/wiki/Free_body_diagram

    The x direction may be chosen to point down the ramp in an inclined plane problem, for example. In that case the friction force only has an x component, and the normal force only has a y component. The force of gravity would then have components in both the x and y directions: mg sin( θ ) in the x and mg cos( θ ) in the y , where θ is the ...

  4. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    Grade is usually expressed as a percentage - converted to the angle α by taking the inverse tangent of the standard mathematical slope, which is rise / run or the grade / 100. If one looks at red numbers on the chart specifying grade, one can see the quirkiness of using the grade to specify slope; the numbers go from 0 for flat, to 100% at 45 ...

  5. Johnstown Inclined Plane - Wikipedia

    en.wikipedia.org/wiki/Johnstown_Inclined_Plane

    The Johnstown Inclined Plane was designed by Hungarian-American engineer Samuel Diescher, who had also designed the Duquesne, Castle Shannon and Fort Pitt Inclines in Pittsburgh. [4] The funicular consists of a parallel set of 8 ft (2,440 mm) broad gauge railroad tracks with a 70.9% grade or an angle of 35 degrees and 28 minutes from the ...

  6. Multiview orthographic projection - Wikipedia

    en.wikipedia.org/wiki/Multiview_orthographic...

    Fig.11: The fourth plane of projection is added parallel to the chosen inclined surface, and perforce, perpendicular to the first (Frontal) plane of projection. Fig.12: Projectors emanate parallel from all points of the object perpendicularly from the inclined surface, and perforce, perpendicular to the fourth (Auxiliary) plane of projection.

  7. Orbital inclination - Wikipedia

    en.wikipedia.org/wiki/Orbital_inclination

    The inclination of orbits of natural or artificial satellites is measured relative to the equatorial plane of the body they orbit, if they orbit sufficiently closely. The equatorial plane is the plane perpendicular to the axis of rotation of the central body. An inclination of 30° could also be described using an angle of 150°.

  8. Lookout Mountain Incline Railway - Wikipedia

    en.wikipedia.org/wiki/Lookout_Mountain_Incline...

    The Lookout Mountain Incline Railway is a 4 ft 8 + 1 ⁄ 2 in (1,435 mm) standard gauge [2] inclined plane funicular railway leading to the top of Lookout Mountain from the historic St. Elmo neighborhood of Chattanooga, Tennessee.

  9. Saint-Louis-Arzviller inclined plane - Wikipedia

    en.wikipedia.org/wiki/Saint-Louis-Arzviller...

    In 1969, these locks were replaced by the Saint-Louis-Arzviller inclined plane. [3] Before the advent of self-propelled barges, the barges were hauled by two to four horses or mules, until the beginning of the 20th century. Then came the tractors, first on railways then on tyres since 1933, with electrical motors first and later diesel engines.