Centrifugal force — is a formal and mythical force. It is made up by scientists and is included in the textbooks only for practical purposes and if to be more precise — for computational convenience.
In reality there is no force directed from the centre of rotation radially the circle of rotation.
Experiment: electro grinder or angle grinder is switched on and something is being sharpened. Sparks and dust fly not radially the abrasive disk but at a tangent to it. If there were centrifugal forces then the sparks would have flown radially into the eyes of the grinderman.
There are only two possibilities of dot movement along the curving trajectory:
Variant 1. Nonlinear motion of the dot that has its own propeller.
The movement of the body under the influence of one force (propelling power) takes place in the direct line (trajectory) — directly. The movement of the body at curving trajectory takes place under the influence of two forces — engine propelling force that is always directed tangentially and «turning» force that is directed aside angle wise from the «direct» line. To move along curving trajectory shunting engine that is capable to provide simultaneous existence of these two forces must be constant because there are no curving or rotary motion of dots by inertia in the nature! As soon as turning force disappears a body begins to move along straight forward. In other words, one can’t use the law of rotating force conservation!
For example, there is a shunting engine in your car that consists of the engine itself. It just pushes your car only in straight direction. And there are also turning wheels that are controlled by you. In this case the turning power takes place due to the friction of the steerable forewheels against the road. As soon as it disappears (you aligned the wheels and drive onto a slippery road) the car will continue moving forward at a tangent to the rotation circle at the moment of aligning the wheels and disappearance of friction.
They write to me: «Get into the car and at the turn you will feel centrifugal force that will press you into the door. Or get inside the centrifuge and centrifugal force that will press you into the chair »
Let me make it clear: In the car your body strives to move straightforward and the door pushes it sideward. This is that turning force. In the centrifuge turning force affects your body from the armchair’s side. But the body like always strives to move straightforward.
While solving the tasks on non-linear and rotating movement one should first of all figure out who is active and who is passive. Active participant of the motion will give you real force. All other forces (force of reaction etc) are mythical forces, wit works woe. They are introduced for the «convenience» that in the end leads to brain blocking.
In the example with centrifuge, source, the «host» of all horizontally real forces is the centrifuge itself. It is an active participant of the motion. That’s why not a man presses on the armchair, the armchair presses on the man, constantly changing direction of the motion of the body that strives to move at a tangent to circle of rotation. It presses into the back. But the man presses at the chair and not vice versa because in the vertical plane he/she is an active participant.
There are no forces in the nature except for the propelling and rotating ones in nonlinear motion of the dot body or in its motion circle wise! «Centrifugal» and «centripetal» forces can be described with the phrase «wit works woe», they are mythical. They «are introduced for convenience» of solving problems on non-linear motion of the dot bodies.
But as the result, we get such dotage that deforms the people’s worldview. When the direction of rotating force coincides with the direction of the turning radius, then it probably can be called centripetal force. But it is better not to do it not to muddy the waters with needless jabber. The word «centripetal» contains some uncertainty — what center? Moscow? In other words, one must never forget the definition of the word «centripetal».
What «rotating» means is clear to everyone, young or adult. A body with a point mass jumping through the hoops in space does not run from the centre of the turn and does not aim for it. It craves only for one thing — to fly over, go, run, pass, swim, crawl, move over etc past the centre of the turn tangentially. And lateral rotating forces hinder from doing it.
Variant 2. Dot body doesn’t have its own propeller.
Dot body that doesn’t have its own propeller can move along curve trajectory, circle-wise in particular only in bulk, that is brought to motion by the propeller or twirl, e.g. Tornado in the atmosphere. In this case propelling and rotating force applied to a dot body are formed by means of engine energy or whirl.
The above mentioned grinder is spin up by electric motor and abrasive particles spin around circle-wise in bulk because they are glued into the emery wheel and compose a united body with it. So in this case we have a body-volume that revolves around its axis that passes through the mass centres. A law of rotation moment conservation is true for this kind of body.
That’s why when engineers or scientists use the law of rotation moment conservation formula to calculate trajectories of planets or artificial Earth satellites, it means that they acknowledge existence of solar system whirl of invisible matter. Otherwise they are just morons!
Only due to the fact that centrifugal forces are named and pictured in the school textbooks, they have engrained in people’s minds as the really existing ones.
Although there are textbooks and books where mythical origins of centrifugal forces are stated, almost no teachers and professors, not mentioning students, know that centrifugal forces do not exist in nature.
Former children grew up with distorted minds, some decided to take up science and continue to follow the course, indicated by preceding «scientists».
The use of formal, mythical concepts in order to solve real tasks should be forbidden!
Because as we see it does bad service even for the experts. In particular, usage of the concept of «centrifugal force» in solving tasks in nonlinear and rotating motion must be banned from the schools and universities.
P.S. It is necessary to remember that dot-body and body-volume are different material objects. For example, rundown of the body-volume around its own axis is possible. But rundown of the body with dot mass in a circular orbit is impossible!