Glide is the process and the result of sliding or sliding : Move an item carefully by a surface , make something come over a difficulty, flow in a certain direction or deliver a thing in a disguised way.
The concept is often used with respect to the movement of land that is generated by a unstable slope . This instability causes part of the terrain to slide over another area. A low intensity earthquake and the heavy rains They can also cause a slip.
In October 1963 there was a tragic slip in Italy . The filling of the tank of the Vajont Dam caused the landslide of millions of cubic meters of rock and earth, which in turn caused the displacement of millions of cubic meters of water. The result was the formation of a tsunami which destroyed several villages and left about 2000 dead.
The dam known as Vajont Dam It is located in the Friuli-Venezia Giulia region, more precisely in the province of Pordenone, and is no longer used today. Its construction took place two years before the incident, and its dimensions placed it among the highest in the world.
It can be said that a slip is a movement of stones, vegetation and earth that occurs due to the lack of firmness of the I usually . This movement can be fast or slow, depending on the case.
In the most severe cases, a slip can end the lifetime of a large number of people, as happened with the Vajont Dam in 1963 . It can also cause significant material losses, destroying homes and flooding roads.
They can even occur waste landslides when tons of waste accumulate in the mountains that are created in landfills. In april 2017 , more than a score of people they died in Sri Lanka for such a slip.
In the field of physical , the landslide is one of the many phenomena that it studies, to give the greatest amount of data to help us analyze it and, if we wish, cause it. In this case we do not talk about land masses, although through this science we can also explain the aforementioned accidents, but the basic representation tells us about the sliding of a body on an inclined plane.
The body in question, a perfectly polished sphere, moves with a uniformly accelerated rectilinear motion , that is to say that its advance has constant speed and occurs in a perfectly straight line. If we place it on a plane with a certain inclination, given the combination with other properties properties, it will slide towards the center of gravity; Although forces such as friction and other obstacles could slow the sphere or alter its speed, in the theoretical example there are no such problems.
The slip occurs because all bodies are subjected to the attraction of the force of gravity that our planet constantly exerts; if we add to that the location on an inclined plane and low or zero friction values, they are expected to begin to descend until the inclination from the ground is much smaller or zero, or until an obstacle forces them to stop.
With respect to the acceleration value, in this case it is greater the more inclined the plane is. In free fall, where the angle Between the Earth and the trajectory of the body is straight (that is, 90 °), the acceleration of gravity is 9.8 meters per second square. For surfaces with different angles of inclination, the equation consists in multiplying said maximum gravity value by the sine of the angle.