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Results tagged with reference-frames
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user 208138
A reference frame is a particular coordinate system chosen to represent physical entities. The notion is most often used in special and general relativity to denote particular coordinates chosen on the spacetime manifold.
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What does an acceleration greater than $g$ feel like?
I hope I have put a pretty good title for this question. I was watching Professor Walter Lewin’s lecture on classical mechanics (lecture 7, I think).
Let’s say a person is hanging from a string (by …
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Newton’s second law - a uniform massive rope on a wedge
I am trying to understand this problem intuitively. The wedge accelerates to the left with $a$. According to the solution, the rope on the left must accelerate down the slope with $a\cos\alpha$? And …
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Force equations for a particle in a non-inertial frame of reference
I am familiar with Pseudo forces and how we use them in accelerating reference frames. My question is a bit specific. Let’s say I am accelerating at $a\frac{m}{s^2}$ and holding a tennis ball of mass …
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What are Inertial and non-inertial forces?
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 …
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Free Body Diagram w.r.t a rotating reference frame
According to my physics textbook,
$1)$ When analysing the statics of a particle of mass $m$ from a reference frame which is rotating with angular speed $\omega$, we need to add a pseudo force known a …
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If Earth accelerates, what reference frame is its acceleration relative to?
It should be a very fundamental thing, a very simple question. But there's something I want to understand.
We know that when we throw an apple vertically upwards, it experiences a force of gravity d …
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Are distance and displacement always frame independent?
I'm aware that distance and displacement, both are independent of reference frames, when the two frames are stationary wrt each other. Because the actual distance (or the shortest distance) between tw …
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Which force provides the centripetal acceleration that makes objects on earth's surface rota...
Let's say an object is at rest in Earth's reference frame. We know that Earth's reference frame is non inertial. If we were to observe that object from an inertial frame, we would see three forces act …
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