If you want to have an idea about what is inertia, then you should be able to grasp why it is important in the first place. Let us take a look at this question through the perspective of a master skateboarder. You see, when we talk about the idea of momentum, we are talking about something that is a force acting on a system. In the case of the skateboard, you will notice that the deck is subject to constant motion. There are the constant forward motion of the wheels and also backspin.
In order to understand what is inertia, you should be able to visualize the changes in the direction of these objects as they change from point A to point B. We can use the force of friction as an example to better understand this concept. When two objects are touching one another, then the total force that is being exercised upon them due to friction is what is known as their total kinetic energy.
What is inertia, then, can be seen from the perspective of a skater. When he jumps on to his skateboard, he wants to accelerate as quickly as possible. However, since he cannot change the velocity of the skateboard, what he ends up doing is rolling the skateboard over again and this is what is called rolling the skateboard over. As he keeps doing this, he puts even more pressure on the deck and the closer he gets to the surface of the board, the more effort that he is putting on the board to do the same trick over again.
Now let us look into what is inertia when applied to larger objects. For instance, let us take a look at the idea of what is inertia when it comes to objects that weigh a great deal. What we would be interested in here is to find out what happens if we apply a great amount of force to such an object and what happens to that object after such a force is applied. This will help us understand what happens when we are trying to move heavier objects. The relationship between what is inertia and the relationship between what are acceleration will help us understand what causes things to move faster or slower.
In short, what is inertia is the tendency of an object to resist a change in its motion and if you have a skateboard, it would not be too surprising if you were to try to accelerate the skateboard while at the same time rolling it over again. If you did that, you would put undue stress on the skateboard. In fact, the very act of rolling the skateboard over could cause serious damage to the deck and the skateboard could even break.
Now, if we take a look what is inertia regarding objects that weigh a great deal less, the relationship between what is inertia and the unbalanced force will become clear. Let us take an object that weighs a ton, let us say a 200 pound person, and let us try to apply a direct force to that person. What will happen as the person rolls the unbalanced object over is that the net force acts against the force that is applied to the object and that ends up producing an effect in opposition to what is called the net centrifugal force.
So, what is inertia then? The answer is that it is the total displacement of an object which results from the change of its kinetic energy in opposition to an external force. Now, let us take a look at what is the first law of thermodynamics. This first law of thermodynamics states that energy in a state is always changing. Therefore, what is the first law of thermodynamics tells us that an object’s total momentum is always changing and what this means is that the total amount of energy exerted on any given object is always changing as well.
In summary, what is inertia is the motion that does not change because of some outside force acting on it. Let us remember earlier when we mentioned the first law of thermodynamics. This second law of thermodynamics is the one which says that the total amount of motion that can be described by a fixed mass, in some fixed direction, and in some fixed distance, is always changing. Now what is inertia and what it is sometimes called is the motion which does not change because of some outside force acting upon it. In closing, what is inertia is motion that does not change because of some outside force acting upon it.