# The strength of the centrifugal: what is it and how does it work?

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As you know, any characteristic of the physical body to maintain its state of rest or uniform motion as long as it will not be made any impact from the outside.The strength of the centrifugal - this is nothing but a manifestation of the universal law of inertia.In our life, it is found so often that we almost do not notice it and react to it on a subconscious level.

concept

centrifugal Strength - is a kind of impact that physical point on the forces that fetter the freedom of movement and makes it move curvilinearly about the relationship of her body.As the displacement vector of the body is constantly changing, even in the case when the absolute velocity remains constant, the acceleration is not zero.Therefore, due to Newton's second law, which establishes the dependence of the force on the mass and acceleration of a body, and there is a centrifugal force.Now, remember the third rule of the famous British physicist.According to it the forces in nature exist in pairs, and hence, the centrifugal force should be somewhat balanced.In fact, there must be something that keeps the body on its curved path!It is, in a pair with a centrifugal spinning on an object as a force centripetal.The difference between them is that the first is applied to the body, and the second - to its connection with the point around which the rotation takes place.

Where manifested centrifugal force

worth unleash his hand a small load, which is pegged to the twine as soon begins to feel the tension of strings.If there were no elastic force, the effect of centrifugal force would lead to rupture of the rope.Every time we move along a circular path (bicycle, car, tram, etc.), pushes us in the opposite direction from the direction of rotation.Therefore, high-speed tracks in areas with steep turns the track has a special inclination to give greater stability competing riders.Consider another interesting example.Since our planet rotates around the axis, centrifugal force acts on any objects that are on the surface.Consequently, all things become a little easier.If you take a weight of 1kg and move it to the pole to the equator, its weight is reduced by 5 grams.With such meager terms, this fact seems to be irrelevant.However, with increasing weight of such difference increases.For example, a steam engine, arrived in Odessa from Arkhangelsk, it will be easier to 60 kg, and the weight of a battleship of 20,000 tons, made their way from the White Sea to the Black Sea, it will be easier as much as 80 tons!Why is this happening?Because the centrifugal force arising from the rotation of our planet, tends to scatter from the surface of the earth, with all that it is.What determines the value of the centrifugal force?Again, remember the second rule of Newton.The first parameter that affects the magnitude of the centrifugal force, of course, is the mass of a rotating body.A second option - the acceleration, which is curvilinear movement depends on the speed of rotation and the radius of the described body.This dependence can be shown as the following formula: a = v2 / R.It turns out: F = m * v2 / R.Scientists have calculated that if our Earth rotates once every 17 faster then the equator would be weightless, as if full revolution was accomplished in just one hour, the weight loss felt not only at the equator, but in all seas and countries,that coexist with it.