Understanding Kinetic Energy
Kinetic energy refers to a form of energy that represents motion. It can also be defined as scalar quantity which means that it possess magnitude but devoid of motion. This is so unlike momentum, force, velocity and acceleration. In essence, it can be described as a single magnitude. Due to this fact, it is always positive and this is clearly evidenced by the kinetic formula used to calculate kinetic energy. This is as follows.
Kinetic Energy = ½ mv2.
In this regard, M stands for body mass while v is used to denote speed found at the center part of the body.
How it is measured
Kinetic energy is always measured in accordance to the entity of the measured reference frame and in most cases it is clearly defined when used in physics. While this is the case, it is ideal to note that at any given time, the overall energy of an isolated object is not subject to change despite the type of frame used for measurement purposes. This type of energy employs a lot of science and while this might be the case, it is used every single day whether knowingly or unknowingly. In essence, it is known for its regular usage when carrying out different types of work.
Derivation of Kinetic Energy
Kinetic energy is closely associated with work. This refers to the scalar product as well as displacement of vector which is often applied wherever force is applied. During derivation, equations for basic kinematics are used and this refers to the rate with which an object changes its speed. As such, the kinetic formula can be derived using the equation x –x0. However, when considering the speed the equations will end up been v2 =vo2 +2as in which the equation outlined earlier is replaced by the terms.
There are several calculations used to arrive to the kinetic energy used by any object and while this is the case, the most important aspect lies in the final equation. Consequently, the ultimate kinetic energy which is also known as EK is defined using the following equation.
K= 0.5 mv2.
There are a couple of things that need to be noted from the kinetic formula above and these include the following.
> For starters, the quantity is always a non-zero.
> When the object possesses mass and is in motion, the scalar is positive.
> In instances when the object is without mass or when its resting, it will be zero
Considering all the facts stated above, kinetic formula cannot be used to determine the direction of the motion. However, it is used to indicate the speed and it is this fact that makes it one of the most trusted forms of energy. Basically, everything that is in movement used kinetic energy and this includes vehicles, trains, people and any other moving objects. What is more, if the right technology is used, it is possible to tap into this energy and store it for better use.