Centrifugal force: what is it and how does it work?

As we know, any physical body preserves its state of rest or uniform rectilinear motion as long as it is not produced by any outside influence. Centrifugal force – this is not that other, as a manifestation of this universal law of inertia. In our life it occurs so often that we hardly notice it and react to it on a subconscious level.

Concept

Centrifugal Force – it is a kind of impact that physical point on the forces that stifle their freedom of movement and makes moving curvilinear relative to the binder of her body. Since the displacement vector of the body is constantly changing, even in the case where the absolute speed remains unchanged, the magnitude of the acceleration is not equal to zero. Therefore, due to Newton's second law, which establishes the dependence of force from mass and acceleration of the body, and there is a centrifugal force. Now remember the third rule of the famous English physicist. According to him in the nature of force pairs exist, and hence the centrifugal force will be balanced. In fact, there must be something that keeps the body in its curved path! It is, in a pair of centrifugal spinning object also has a centripetal force. The difference between them is that the first applied to the body, and the second – to its connection with the point around which the rotation occurs.

Where is evident the action of the centrifugal force

It Should spin by hand a little weight, which is tied to a string, as it immediately begins to feel the tension of the string. If there were no elastic force, the influence of the centrifugal force would tear the rope. Every time we move in circular paths (bike, car, tram, etc.) that pushes us in the opposite rotation direction. Therefore, on high-speed tracks in areas with sharp turns the track has a special inclination to give greater stability of the competing racers. Consider another interesting example. Because our planet rotates around the axis, the centrifugal force acts on any objects that are on its surface. As a result, things become a little easier. If you take a weight in 1kg and move it from the pole to the equator, its weight will decrease by 5 grams. In such miniscule quantities, this fact seems inconsequential. However, weight gain is such a difference increases. For example, the engine arrived to Odessa from Arkhangelsk, it will be easier to 60 kg, and the linear ship weighing 20,000 tons, made his way from the White sea to the Black sea, will become lighter by as much as 80 tons! Why is this happening? Because the centrifugal force arising from the rotation of our planet, and strives to scatter from the surface of the Earth with all that therein is. What determines the value of the centrifugal force? Again, remember the second rule of Newton. The first parameter influencing the magnitude of the centrifugal force, of course, is the mass of the rotating body. And the second parameter is the acceleration in curvilinear motion depends on the speed of rotation and the radius described by the body. This dependence can be displayed in the formula: a = v²/R. Obtained: F =m*v²/R. Scientists have calculated that if our Earth rotates once in 17 faster then the equator would be weightless, and if a complete revolution was accomplished in just one hour, the weight loss is felt not only at the equator, but also in all seas and countries, which coexist with it.