All Questions
Tagged with torque definition
22
questions
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Equation of Torque
The magnitude of torque is defined as the product of the perpendicular (to the object) component of the force I apply and the distance between the axis of rotation and the point of application of the ...
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3
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Sign of distance/arm when finding moment/torque
I know that $M=Fd$, but when I have a negative moment, does the sign of the moment matter when I'm calculating for distance? If yes, then what would it mean when distance is negative?
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Is Torque always defined about the axis of rotation?
My professor told me torque can be calculated about any point in space, but would such a torque ever make sense even if the particle is rotating about some other axis, on which the point does not lie?
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Difference between moment and couple
What is the exact difference between a moment and a couple? In some YouTube channels and books, they say the moment of a force produces a translational as well as rotational motion whereas the concept ...
3
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Is the position vector an axial vector?
The displacement vector $\vec{r}_{ij} = \vec{r}_j - \vec{r}_i$ is of course a polar vector because it's completely independent of the choice of origin, but what about the position $\vec{r}$ which, by ...
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Is there a serious ambiguity in the definition of the cross-product of unit vectors?
Consider a force F acting along the x-axis applied to a directed lever arm L parallel the y-axis, and with the conventional torque T parallel to the z-axis, with the three vectors a right-handed triad....
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What is $R$ in torque? [closed]
I am confused of what is $R$ in torque is it the distance to the axis of rotation or to a specific point or origin of axis of rotation (pivot)? the forces should treated as lines?
5
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If torque is a form of moment, then why is the word 'moment' used for the 'magnetic dipole moment', NiA, for a current-carrying loop?
I thought torque is a form of moment:
If the moment makes the object rotate, we call it torque; otherwise we just use the name moment.
However it seems the electric & magnetic dipole moments are ...
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Why is torque defined as $\vec{r} \times F$?
Here I cannot convince myself myself that it is units because the torque is defined to be in units of Newton meter is a reiteration of the law stated above. Why was it not $r^2 \times F$ or $r^3 \...
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3
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The unit of Torque [duplicate]
Whenever we define a physical quantity, we know what 1 unit of that quantity tells us. For example, when we say 5 Pa, we're saying 5 N force acts perpendicularly on every unit area of the material but ...
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Is the definition of Work done by Torque a general result?
I was going through this post.
In the post the person who asked the question mentioned a statement:
"Lastly, I am emphasizing that I'm am NOT saying that torque is incorrect, only that the work ...
3
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Why is Torque defined the way it is?
According to my professor, Torque is like the connection of force in the angular world. But, we know that most quantities such as angular acceleration, angular velocity, etc. are defined as something ...
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2
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What exactly is moment? Why does it correspond to a rotation?
Wikipedia says:
Moment is an expression involving the product of a distance and physical quantity.
I don't quite get it. Moment is a vector, the cross product of the distance vector and the vector ...
2
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2
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Does "moment" have a single meaning in physics?
I am a high school student and I am curious about the word moment and what it means in different contexts, whether it has a definite meaning or not?
I know it has some relation to different kinds of ...
2
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4
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What are the proper definitions of moment, couple, torque, 'moment of force'?
When I read some scientific articles I am getting confused with the interchange being used between Torque, Couple, Moment, 'Moment Of Force'.
Have I got this correct?
Moment is supposed to be some ...