Questions tagged [inertia]
Inertia is the tendency of a body to oppose changes to its state of motion. DO NOT USE THIS TAG for moment of inertia or inertia tensor!
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Why is the moment of inertia the rotational analog for mass and not inertia?
I've thought that both mass and the moment of inertia measure an object's inertia, one being in translational motion and the other in rotational motion. That has made complete sense to me, but in my ...
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Inertia tensor but expressed after undergoing rotation
Suppose we find a set of basis that constitues the principial axis of some three dimensional body with mass. In this set of basis, our inertia tensor becomes a diagonal matrix, let $I' = diag(I_{x'x'},...
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Does it make sense an inertial mass dipole moment for massless particles?
Electric and magnetic dipoles exist in nature even with zero net electric and magnetic charge
Electrons have a unit of charge, about $10^{-31}$ kg of inertial mass, zero electric dipole moment, $\...
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Why does binding energy of particles, which constitutes most of macroscopic mass, make them harder to accelerate?
I've seen a lot of questions on this topic so please don't misunderstand, I understand E = mc^2 and SEMF and so on. I specifically want to know how internal forces within lets say a nucleus make it ...
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Is the jerk caused by pseudo force when bus come to stop suddenly?
If a bus stops moving suddenly, we tend to fall forwards due to the inertia of motion of our upper body.
But can we explain the sudden jerk in the forward direction due to some pseudo force? (Because ...
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What does it signify that electrostatic mass cannot exist without inertial mass?
From Coulomb's law and Newton's second law we can state that if there is electrostatic mass (charge) at any point of space then there has to exist inertial mass also at that point of space. Otherwise, ...
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Evolution of a rotating system in which mass continually leaks [closed]
this might be a trivial problem but me and a friend have failed to solve it. This is not homework, it actually relates to a book of mine but that is of no interest. Imagine the following;
Two masses $...
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Newton's first law and Inertial systems
Newton's first law is part definition and part experimental. Isolated bodies move uniformly in inertial systems by virtue of the definition of an inertial system. In contrast, the assertion that ...
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Geodesic equation: Bridging the gap between inertia and gravity
The geodesic equation can be expressed as:
$$\frac{\mathrm{d}^2 x^\mu}{\mathrm{d}\tau ^2} + \Gamma _{\alpha \beta} ^\mu \frac{\mathrm{d}x^\alpha}{\mathrm{d}\tau} \frac{\mathrm{d}x^\beta}{\mathrm{d}\...
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Mass moment of inertia flipping in different mediums
Consider someone performing a front flip in the water versus in the air. Assume the body position in both cases to be identical. In which case would the mass moment of inertia be greater and why?
Prof ...
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Is this the correct way to integrate orientation given torque and inertia tensor?
I am trying to develop a 3D rigid body simulation in C++ in which I had some conceptual doubts on how to integrate for orientation given the total torque applied to a rigid body, and it's initial ...
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Difference between Mass and Inertia
My questions is about mass and Inertia, what is the difference between Mass and Inertia? Are they the same or different? How?
I am really confused with it,some says mass is the measure of Inertia, ...
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What would be an experimental test of Sciama’s theory and why it has not been pursued yet?
Recently I came across a video were the origin of inertia was attributed to Sciama’s paper (1953).
I have seen only a couple of questions regarding this topic on Stack Physics. Both of them are ...
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Can someone explain 'virtual mass' in fluids in simple words (for a dummy/high schooler)?
so I recently came across the term 'virtual mass' and when I looked up more about it, it just gave me some stuff about fluid mechanics that I dont understand properly. My understanding of virtual mass ...
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Can we achieve infinite movement from one initial burst of energy?
If there was a large enough vacuum chamber, and it was a perfect vacuum, could we potentially throw something and have it move infinitely? When you throw something, say a football, it travels through ...
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