Finally, we present information about how the Rule of Parallelogram depends on the type of Forces acting on a particle.
A) Even though sources of all types of forces are different, and their effect on a particle can be compared, since each of the forces tends to cause the particles to move. And so, even if the forces acting on a particle are of different types, you can build the Parallelogram of Forces on the vectors, and its diagonal will be showing the direction in which the particle will move.
The value of the Force vector is greater, the greater a force is. A Force is greater, the greater is the velocity with which the particle shifted in this direction if another Force would not act on it (or other Forces).
The length of the vector of resultant Force – of the diagonal - corresponds to the rate at which a particle will be displaced by the action of two Forces applied to it.
B) We have established earlier that there are only four main types of forces. When Galileo deduced the Rule of Parallelogram, it is obvious that he has done in relation to the Forces, with which some bodies put pressure on others or drag them, making to move. This type of Force is called in this book the Force of Pressure of the Particle Surface. We have heard a little about that the Rule of Parallelogram is used for Gravity Force. Especially, this limit applies to Repulsive Force and Force of Inertia, the first of which is almost not recognized by science, and the second is not known at all.
But anyway, this rule is universal and can be used for any of four types of forces - Pressure of the Particle Surface, Attraction, Repulsion and Inertia. However unchanged it can be applied only to Force of Pressure of the Particle Surface, i.e. for the same event, which is described by Galileo for bodies.
Two bodies affect on the body from both sides - or put pressure on it or drag. In our case, two particles press on the particle (they can’t mechanically drag the particle).
Taken separately a free particle will never cause long-term pressure on other particle, if only the Force of Attraction doesn’t act on it from another particle. Alternatively, if particles are included into bodies and they squeeze each other and any particle between them. Therefore, in our case it is one-stage pressure on the particle of two particles as a result of the collision with it. When two particles collide with a particle, it starts to move by inertia, exactly in accordance with the Rule of Parallelogram. The diagonal (resultant Force vector) shows the direction in which the particle will move. How long inertial motion will, depends on the rate at which the particles were moving at the time of the collision with it, on the angle between the vectors of Forces and more on the quality of the particle itself.
C) The only difficulty that we face in the construction of Parallelogram of Forces is related to Attraction and Repulsion Forces. Here it is spoken even more likely not about the difficulty but about of strangeness. Sources of forces of attraction or repulsion are located from the particle on one or another distance. However, the particle feels effect of these forces directly. This is not surprising, because a gravitational interaction or anti-gravitational propagates instantaneously. This instantaneous dissemination is explained by the fact that an ethereal "cloth" – it is a kind of monolith that fills homogeneously the entire universe. And the appearance in this cloth of any excess or deficiency of Ether is immediately felt at any distance.
In this case, when types of Forces acting on a particle, are different, the vector of Forces must indicate the direction in which the Force strives to displace the particle. For example, if a Force of Attraction acts on a particle, so the vector will be directed to an object, the source of this force, and not of it. But in the case of Repulsion Force all is the opposite. The vector will be directed from the source of the Force.
As the Force of Pressure of the Particle Surface, everything is the same as in mechanics of bodies. In this case, the source of Force is in direct contact with the particle - collides with it. And vector of this Force is directed in the same direction as the motion vector of a particle whose surface exerts pressure.
And finally, there is last of Forces – Force of Inertia. The presence of this force can be discussed only in the case if a particle is moving by inertia. If the particle is not moving by inertia, there is no Force of Inertia. A vector of Inertia Force always coincides with the vector of motion of particle at this moment. A vector of Inertia Force is Ether emitted by the rear Hemisphere of particle.
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