The word speed derives from the Latin “velocĭtas, -ātis”. The speed refers to a physical magnitude in which is measured using a pattern having well determined that magnitude grasping as a unit the amount of that property possessed by the object pattern vector character which is explained by a point of the space which is measured that magnitude, where there is also a module, a length, its direction or orientation, its sense is distinguished by the origin of the extreme, which expresses the displacement of an object per unit of time.
The speed is represented by the symbol V. Its dimensions are "L" which means length and "T" for time. Its unit in international methods is the meter per second where it is represented by the symbol m / s which means meters per second.
In the vector mode efficiency you can determine the speed that should be considered the direction of the displacement and the rule that is qualified by its speed that is a model of the physical magnitude that is expressed by a single number and has the same value for all the observers or by its speed, which has the same dimension of speed, but it is not vector of this.
The speed is the rhythm or rate of change of the position is indicating its location in space per unit time, acceleration is the rate of change per unit time.
On the other hand, the athletics event that consists of running as fast as possible at a certain amount of distance is known as a sprint race. This test is the most common because they are 100 meters straight or flat.
