• Monday April 6,2020


We explain what is the acceleration and the formulas used to calculate it. In addition, its difference with speed and examples.

The concept of acceleration comes from the studies of Isaac Newton.
  1. What is the acceleration?

We call physical acceleration a vector magnitude (that is, endowed with direction) that the variation in the speed according to the time elapsed of an object which is in motion. Normally it is represented with the sign to and its unit of measurement in the International System is m / s2 (meters per second square).

The origin of the acceleration as a concept comes from the studies of Isaac Newton (founders of classical mechanics), in the that it ensures that an object will retain its rectilinear and uniform motion (MRU) unless it is on l, Whether positive (increase in speed) or negative (decrease in speed), and either constant (regulate in its action on the body) or not (irregular in action) over the body).

There are several types of acceleration:

  • Positive acceleration . When it takes place in the same direction of the movement's path, adding to its speed.
  • Acceleration negative . When it takes place in contradiction to the trajectory of the movement, opposing the speed of it.
  • Acceleration medium . Average of the accelerating movement of a mobile in time, provided it occurs in regular units of increase or decrease (uniformly accelerated movement).

See also: Kinematics.

  1. Acceleration Formula

Classical mechanics understand acceleration as a variation of the velocity of a body in time, so proposes the following formula: a = dV / dt, where to ser be acceleration, dV the difference in velocities y dt The time at which the acceleration occurs.

Both variables are understood as follows:

  • dV = V f – V i, where V f be the final speed and V i the initial speed of the mobile. It is important to observe this order to reflect the direction of acceleration.
  • dt = t f - t i, where t f will be the final time and t i the initial time of the movement. Unless otherwise stipulated, the initial time will always be 0 seconds.

On the other hand, according to Newton's studies, given a body of constant mass (m), there is a relationship of proportionality with respect to the force that is applied to the object (F) and the acceleration obtained from it (a), and That is stated as follows:

F = ma

That way, we can calculate the acceleration with the following formula:

a = F / m

All this according to Newton's second Law or Fundamental Law of Dynamics.

  1. Speed ​​and acceleration

Acceleration has to do with the variation of velocity in an object.

Speed ​​and acceleration are two different concepts . Its difference is that the first refers to the amount of distance that a body travels in a given unit of time (so it is measured in Kmph, for example) while acceleration has to do with the variation of said speed in a object, whether or not it moves (Initial speed = 0).

  1. Acceleration Examples

Some examples of acceleration could be:

  • The takeoff of a space rocket, which gains greater speed as it rises. It is possible to calculate your acceleration if we have the force of the thrust that your fuel gives you and the total mass of the rocket.
  • A train that stops, experiences a negative acceleration when it is about to approach the station, which can be calculated using the initial and final speeds corresponding to each passing moment.
  • A ball is resting on the ground, before a child kicks it. The ball will reach a certain speed in its displacement, after it has accelerated from 0 to said average speed and then it will slow down again until it returns to rest.

Interesting Articles



We explain to you what a prayer is and some of its characteristics. In addition, the elements that make up a sentence. A prayer can be bimembre or unimembre. What is Prayer? Prayer is one or more words that make up a whole with a logical sense . From the linguistic point of view, it is the smallest unit of content and also has synthetic autonomy

Audiovisual Media

Audiovisual Media

We explain to you what the audiovisual media are, their history and main characteristics. In addition, how they are classified and what they are for. The audiovisual media transmit images and sound synchronously. What are the audiovisual media? The media of audiovisual communication (or simply audiovisual media) are those mass communication mechanisms that transmit their messages through channels that involve not only the sense of the view, as in the traditional print media, but also that of the hearing



We explain what the protocol is (as rules of conduct, and in computer science). In addition, protocol types and some examples. These behaviors or rules may include certain ways of dressing. What is Protocol? The protocol, in its definition most used, refers to different behaviors and rules that people in a given society should know and respect on specific occasions, such as in areas officers for a particular reason or because he has a position that requires this protocol



We explain what the budget is and why this document is so important. Its classification and what is a budget follow-up. The budget is intended to prevent and correct financial errors. What is Budget? The budget is a document that provides for the cats and profits of a particular agency , company or entity, whether private or state, within a certain period of time

Cell Theory

Cell Theory

We explain what cell theory is, its postulates and principles. In addition, the history of its background and how it was verified. The cell theory explains that all organisms are made up of cells. What is cell theory? Cellular theory is one of the most important and central postulates of the field of modern biology



We explain what the probability is and what are the methods it uses. In addition, the various areas in which it can be applied. At first it related to probability with gambling. What is Probability? The concept of probability comes from the Latin term probabil tas . In the first instance, it is understood as the possibility that a certain probable event actually occurs