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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How can you figure out when inertia or momentum is keeping the object in motion?
If we consider the case of Earth, inertia carries the Earth forward (inertia alone will make the Earth go out of orbit so gravity keeps it in orbit around the sun), but if we consider the case of a ...
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Regarding the law of Inertia
I am still a student in high school, so don't judge me because of this question:-
Imagine you are on a train, then you pass by a tree; for me, this tree appears to me in motion. The train has moved ...
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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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Explaining how the Higgs fields gives particles mass [closed]
Physicists say the Higgs Field is like syrup and slows particles down from the speed of light. Wouldn’t it be easier and more correct to say there are no particles, just fields, and the strength of ...
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When we say inertia is the quality of matter to resist changes in velocity, in what way does it 'resist'?
Until today I used to understand and explain anyone the concept of inertia in the following way, but I found a loophole in that explanation.
Explanation :
Imagine we take a body in space where there ...
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What is the origin of the inertia?
Is there any explanation why it is harder to move an object with more mass than an object with lesser mass? What kind of force is opposing our force? Is it finalized currently and well known what the ...
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Can we have motion in systems where inertia is neglected? [closed]
According to Newton's law:
$$ \sum F=ma$$
So, if we have some acceleration, it's because we have a certain amount of motion in our systems.
This makes me confused if inertia was neglected. Are there ...
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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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Do electrons have inertia?
I don't know quantum mechanics and know a little bit about mechanics and a very little bit about subatomic particles but I am just a curious to know the answer to my question. My question is if '...
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Thought experiment in Mach's principle - Can a void universe be considered with special relativity?
Mach's principle is based on a thought experiment in which an astronaut floats in the middle of a space devoid of all matter and all landmarks. No star, no source of energy is present, whatever the ...
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Electromagnetic Waves and Inertia
I have a conceptual question. Suppose we have two bodies of equal masses. One is electrically neutral and the other is electrically charged (positivley charged). Now we apply equal magnitude of force ...
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Would you run faster on Mars?
Given the 1/3rd of Earth's gravity on Mars and neglecting space suit limitations and also assuming you have maintained your muscle strength, would you run faster on Mars?
The answer may not be so ...
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Is inertia present at the level of elementary particles?
Is a more massive elementary particle will experience more inertia in a one-on-one particle interaction?
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How to find inertia tensor of a circular ring from angular momentum and velocity?
Consider a thin circular ring with radius $R$ and axis of rotation as shown in the figure. If $\vec{L}$ denotes angular momentum and $\vec{w}$ is the angular velocity then
$$\vec{L}=\begin{bmatrix} I_{...
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Are there two competing definitions of "inertia"?
The term inertia is often introduced by stating Newton's first law: An object stays at rest or moves with $\vec{v}=const.$, if the resultant force is zero. This feature of masses is called "...
