The interpretation of the principle of equivalence

Keywords: the equivalence principle freefall Department, force, inertia, acceleration, keep generates author: Wu Xing Guang（吴兴广） China（中国）

(1) the principle of equivalence is proposed, some people think that the the freefall system is a good inertial system. Why freefall Department is a good inertial system? The freefall Department inertial system do? (2) force the object to produce an acceleration of the reason, this is the role of the force. Then the force applied yet? (3) the object by the force, inertia, still exist? (4) the object has inertia, inertia objects to maintain a constant state of motion. Inertia in size, quality is a measure of the size of objects inertia. Inertia of the role is to maintain, then maintain the size of it? Maintain can be used to measure the size?

The force has to maintain the constant nature of the 'degree of change in the state of motion'.

Let's look at the force object to produce an acceleration.

An object, if the magnitude and direction of its speed will remain unchanged, we say, the state of motion of the object remains unchanged. If the speed of the object is changed, i.e. the size, and (or) the direction of the speed of occurrence of a change, we say that the movement of the object has changed state. Newton's first law tells us that the object if no force, the state of motion of the object is not changed. Thus, we know that, if the state of motion of the object is changed, must be a strong role in the object. The change in the state of movement of objects, due to the force, the force is the cause of the change of state of motion of the object occurs. The state of motion of the object is changed, the object having the acceleration, so the force is the object to produce an acceleration.

Since the force is the object acceleration, acceleration and force is there anything to do? Study showed that: the objects of the same quality, the acceleration of the object with proportional to the force acting on the object represented by mathematical formulas a1 / a2 = F1/F2 because of the acceleration of an object with a force acting on the object is proportional to Therefore, acting on the force on the object is constant, the acceleration constant. If the force on the continuing role of the object, the acceleration remains unchanged. (Previously we said, the force has been acting on the object has been to produce an acceleration.) If the force suddenly disappear, then the acceleration also disappear. So that the force to maintain the acceleration constant nature. The acceleration constant is the speed of change in the state of movement of objects to the same, that is, the degree of change of the state of motion of the object unchanged. So the force has to maintain the constant nature of the 'degree of change in the state of motion'.

We know that the force has to remain the same 'degree of change in the state of motion' nature, look at the non-inertial reference frame, for example, to accelerate system. Another type of reference system freefall Department. Freefall system object to maintain the nature of the acceleration constant due to the force of acceleration in the freefall Department opinion offset each other, it becomes the nature of the object while maintaining the state of motion due to the inertia constant.

When the object by the force, inertia still exist?

Force: force the object acceleration; Second, the force has to remain the same 'degree of change in the state of motion' nature. (We temporarily so described, and the future will determine if different)

1) objects, force, force the object to produce an acceleration. 2) related to the size of the magnitude of acceleration and force, and the size of the mass of the object (can also say the size of the inertia), i.e. Newton's second law a = F / m. 3) at = V. acceleration itself into speed.

Such objects by processes that is, the force of the object to produce an acceleration, the magnitude of the force and mass (or inertia) size determines the size of the generated acceleration, acceleration itself again acceleration into a speed, the inertia of a body to produce a speed holding. when force disappears, the inertia to maintain the speed of the original speed of the object plus the speed of the conversion.

Objects have inertia, inertia objects to maintain a constant state of motion. Inertia in size, quality is a measure of the size of objects inertia. Inertia of the role is to maintain, then maintain the size of it? Maintain can be used to measure the size?

The moment we do not know the role of the force we talk about the above two are not the same thing, we first force described two.

Force having to maintain the degree of change 'on' state of motion constant nature, i.e. a force to maintain the acceleration constant nature, then the greater the force, the force the greater the capacity to maintain the acceleration constant? The force is smaller, the smaller force the ability to keep the acceleration constant? Not. Force or produce acceleration reasons. The greater the force, the greater the acceleration force generating smaller; force, acceleration force generating smaller. Different from the size of the force, the acceleration generated.

Keep acceleration constant nature and inertia to maintain the same speed nature, which is to maintain the ability. Force size, the greater the force, the greater the acceleration force generating smaller; force, the force generated by the acceleration is smaller. Inertia, size, quality small objects, small inertia, easy to change the state of motion; quality large objects inertia is difficult to change the state of motion. Corresponding to the magnitude of the force by the acceleration of different sizes, corresponding to the size of the force-producing ability; inertial description of the size of the size of the holding ability, the inertia is not there is a generating capability? The inertia of the size of the corresponding generating capacity?

Acting in the force on the object is constant, an acceleration constant. The sustained force acting on an object, the acceleration of the object remains unchanged. Force with maintaining the nature of the constant acceleration, if the force is constant, the force does not change, then the acceleration constant, if the inertial becomes large it? Inertia becomes small? Derived based on Newton's second law a = F / m inertia becomes large, the acceleration becomes small; smaller inertia, acceleration becomes large. That inertia having an altered ability to change the size of the acceleration. Inertia has the ability to change.

Movement divided into two categories, one uniform, constant speed; two the uniform variable speed variable-speed, variable speed. The uniform variable speed called variable speed constant. (We have the same degree of change in the state of motion is called variable speed constant, that constant is variable speed constant acceleration.)

A shift movement of the object, preferably variable speed constant movement, when inertial changes, uniform shift change. Inertia becomes large, the movement will change shift constant, uniform changes smaller; inertia becomes small movement will change shift constant, uniform changes become large. Analogy, a uniform motion of the object by the force or said force changes, uniform changes, where an acceleration force generating the uniform change, we found that the inertia should produce what, so that a uniform shift change.

Inertial able to shift the object to produce an effect, this role is able to change the degree of change of the shift movement. The inertia of this effect is similar to the force.

Launched launched launched F = ma a = F / m F / a = m 1 / a = m / F. 1 / a with a letter, for example, k, then the formula 1 / a = m / F can be expressed as k = m / F. This formula has no physical meaning it? k is the reciprocal of the acceleration, we can call it the anti-acceleration. Newton's first law is the unstressed state, represented by Newton's second law F = ma stress state, Newton's second law, F = ma is the shifting state of the object from the uniform state to. k = m / F indicates the object from the shifting state to a uniform state. k represents an anti acceleration, m represents the mass (inertia), F represents force. The force of the same object, the object of anti-acceleration and inertia proportional The mathematical formula that is k1/k2 = m1/m2. The same inertial effects, object anti inversely proportional to the acceleration with the force of an object. Mathematical formula is k1/k2 = F2/F1.

A = F / m, the inertia to maintain the speed constant, force to change the speed of the object. The result is that the speed of the force and the inertia of the joint action has changed. K = m / F, the force remains the same shift movement, inertial change of the shift movement of the object. Inertia and force such an outcome is variable motion changes.

Inertia enables variable motion of the object to be counter-productive acceleration. The so-called anti-acceleration is variable motion to change the speed of the uniform motion. K = 1 / a, V = the at, too, V = t / k.

a = F / m and k = m / F mutual conversion. We inertia to maintain speed when said force to change the speed; when we say that force to maintain a constant speed movement, said inertial change variable motion. This is the description of the same phenomenon. The two are equivalent. Inertial force, to maintain and change.

Force: force the object acceleration; Second, the force has to remain the same 'degree of change in the state of motion' nature. A matter of fact, an object is to produce an acceleration force, and can also be said to keep acceleration constant force. An object sustained by the force of acceleration is constantly; constantly an object by force, is the acceleration constantly. In two different ways.

We say that the inertia of the object has to maintain the nature of the constant state of motion and inertia to produce anti-acceleration, the shift objects. The role of the force in fact count as one. Inertia.

References: [1] "General Principle of Relativity unique perspective" [2] "inertia with reference system" [3] "Campaign recognizes - movement difference" [4] "Space - Understanding" [5] "is less than + less than = sports "article of the same.

2013-1-19 8:28:02

The inevitably wrong translation, see Chinese original