A tag for questions about rotational motion, including angular velocity and angular acceleration.
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Magnitude of object's angular acceleration [closed]
I'm studying for a physics exam today and am super stumped on a problem. Would love your help, or some guidance on how to solve it.
An object is being spun at an angular speed of 4.3 rad/s and ...
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68 views
Units and use of the formula of the angular acceleration? [closed]
Question: On my document, it is written:
Angular acceleration:
$$ \frac{d\omega}{dt}=r\times \alpha $$
What are the units please?
What are $d \omega$, $dt$ and $r$?
I already know that $\alpha$ is ...
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177 views
Determining friction for unbalanced wheel to roll without sliding
I'm trying to model a weighted wheel rolling without slipping. I understand that friction, by virtue of being an off-center force, affects both linear and angular acceleration. So my train-of-thought ...
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2answers
430 views
Does uniform circular motion occur in real life in a non horizontal plane?
I have a question about UCM, as I am studying it in my Physics course. I understand that Non-UCM experiences a tangential acceleration component, which is the result of changing speed along its ...
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Energies decay in 3D homogeneous rotating turbulence
In three-dimensional rotating homogeneous turbulence governed by the hyper-viscous Navier-Stokes equation with an additional Coriolis force in a three-periodic setup:
\begin{equation}
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1answer
320 views
How to get angular acceleration from spin count and angular velocity [closed]
It would be very good if someone explained me how do you get to the final answer which is already know (3.2 rad/s^2)
Have been given:
ω = 20 = angular velocity (rad/s)
N = 10 full spins
Need to find:
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Angles of Two Rotating Beams Connected by a Rod [closed]
Two beams with radii $R_s$ and $R_m$ are hinged a fixed distance $d$ apart. They are connected at their tips by a rod of fixed length $x$. If the beams start out parallel to each other and ...
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How to find time taken for a spinning top to stop? [closed]
The angular position of a spinning top is given by $\theta = t^3 - 72t$, where $t$ is in seconds
and $\theta$ in "radian".
