![equation for average speed equation for average speed](http://2.bp.blogspot.com/-Ic-XplZHX_E/VOqf0CiqekI/AAAAAAAAGus/xLmPKOla8mo/s1600/Motion%2Bin%2Ba%2Bstraight%2Bline_04.jpg)
Note that it is important to clarify where the point O – the origin – is, as this is the point at which the particle is said to go “to the right” or “to the left”. Then the sign of the mean velocity will be determined by that of x 2 – x 1. In other words, the next moment is always greater than the current one. Thus, t 2 – t 1 is always positive, which usually makes sense on a daily basis. Signals of average speedįor the following analysis, it should be taken into account that t 2 > t 1. Geometric interpretation of mean velocity, as a slope of the straight line joining points P and Q. When cutting at position vs. curve. time in two points, is a secant line . The average velocity has a geometric interpretation that can be seen in the figure below. It is the slope of the line passing through points P and Q. To distinguish positions or locations to the left of O, the (-) sign is used and those to the right of O bear the (+) sign. The mentioned magnitudes: position, displacement, time interval and average velocity describe the behavior of the particle as it moves. It’s about kinematic magnitudes . The particle can move away from or towards O, to the left or to the right. It can also take a long or a short time to reach a certain position. Imagine the example particle moving along a straight line. To describe its movement, it is necessary to indicate a reference point, which will be the “origin” and will be indicated as O. Since vectors have magnitude, direction, and direction, an initial analysis of the equation indicates that the average velocity will have the same direction and direction as the displacement. This quality is represented in bold or by an arrow above the letter designating the magnitude. However, in a dimension, the only possible direction is the x-axis, so vector notation can be dispensed with. The average velocity is a vector, as it is related to the change in position, which in turn is known as the displacement vector. Average velocity characteristics of vector v m The Greek letter “Δ” is read as “delta” and is used to briefly indicate the difference between two quantities. The units of v m in the International System are meters / second (m / s). Other commonly used units that appear on text and mobile devices are: km / h, cm / s, miles / h, feet / s and more, as long as they have the form duration / time. Suppose the moving object occupies positions x 1 and x 2 at times t 1 and 2 respectively. The definition of average velocity v m is mathematically represented as follows: