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What is an inertial frame? - Physics Stack Exchange
2017年3月22日 · Wikipedia defines an inertial frame as: In classical physics and special relativity, an inertial frame of reference (also inertial reference frame or inertial frame, Galilean reference frame or inertial space) is a frame of reference that describes time and space homogeneously, isotropically, and in a time-independent manner.[1]
What is an inertial frame in terms of acceleration?
2024年10月2日 · „In classical physics and special relativity, an inertial frame of reference (also called inertial space, or Galilean reference frame) is a stationary or uniformly moving frame of reference.“ Wiki. The problem with this definition is the use of the words uniform and moving.
What really is "inertial force"? - Physics Stack Exchange
2014年11月29日 · A fictitious force, also called a pseudo force,[1] d'Alembert force[2][3] or inertial force,[4][5] is an apparent force that acts on all masses whose motion is described using a non-inertial frame of reference, such as a rotating reference frame.. This makes clearer what is one inertial force in general.
newtonian mechanics - What are Inertial and non-inertial forces ...
2020年4月14日 · What are inertial and non-inertial forces? I looked them up. One of the websites says that an inertial force is a force that can be observed/measured in an inertial frame. In this case, do we have a Force that we can't observe or measure in an inertial frame? Aren't forces frame independent?
Reynolds number and inertial force - Physics Stack Exchange
Inertial force, as the name implies is the force due to the momentum of the fluid. This is usually expressed in the momentum equation by the term $(\rho v)v$ . So, the denser a fluid is, and the higher its velocity, the more momentum (inertia) it has.
Is the definition of inertial reference frame circular?
2024年9月14日 · That is: using a rotating coordinate system is possible by virtue of still using the inertial coordinate system as underlying reference. So: While it is possible to use any non-inertial coordinate system, you can do so if and only if your process relies on the equivalence class of inertial coordinate systems for comprehensive underlying reference.
What's the difference between the five masses: inertial mass ...
Let us define the inertial mass, gravitational mass and rest mass of a particle. Inertial mass: To every particle in nature we can associate a real number with it so that the value of the number gives the measure of inertia (the amount of resistance of the particle to accelerate for a definite force applied on it) of the particle.
Is there any true inertial reference frame in the universe?
$\begingroup$ psuedo force is an imaginary force which is applied on the body if the frame is non inertial,in order to use the equation F=ma.The direction of psuedo force is opposite to the direction of acceleration of non inertial observer w.r.t inertial frame.the magnitude of psuedo force=mass of the body on which it is applied*acceleration ...
The definition of an inertial reference frame in Einstein's relativity
When you zoom out the next level is the inertial frame that is co-moving with the Earth's center of mass. And so you zoom out to ever larger perspectives. In the GR concept of inertial frame of reference the inertial frames of each of those levels of perspective are in …
general relativity - The equivalence principle and identifying free ...
$\begingroup$ @lattitude I haven't assumed that the Earth represents an inertial frame though (I'm not using Newton's assumptions), I was purely stating that the elevator is accelerating relative to an Earthbound observer, but due to the equivalence principle, the observer (and all other objects) inside the elevator will also accelerate at the ...