All Questions
6
questions
0
votes
1
answer
212
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Few forces applied to body with shifted center of mass. How to find resulting force and torque at central point?
I have body built from few 2d polygons each of them has mass. Forces can be applied to different points of body. How to calculate resulting force and torque at the central point of body (point (0;0) ...
- 189
4
votes
0
answers
69
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Why don't more celestial bodies exhibit higher-order rotations?
It is well known that the Earth spins on its axis. It is also well known that the Earth's axis also precesses, i.e. spins around a secondary axis, much more slowly. Less well known is that we have ...
- 434
24
votes
2
answers
5k
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What is the exact and precise definition of an ANGLE?
On wikipedea I found a definition of an Angle as such:
"In order to measure an angle θ, a circular arc centered at the vertex of the angle is drawn, e.g. with a pair of compasses. The length of ...
- 3,989
1
vote
1
answer
4k
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Circular motion "calculate the angle"
I have a equation i need to find out how they hang together.
angel = (velocity * time) - (acceleration * time * time / 2)
I know circumference of a circle:
<...
- 113
3
votes
1
answer
3k
views
Solid body rotation around 2-axes
I am trying to understand how to describe the rotation of a solid body flying in 3D space. From physics forums, I understand that the rotation of any solid object in space, is around 2 axes ...
- 905
8
votes
2
answers
2k
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Aren't asteroids contradicting Euler's rotation theorem?
I am totally confused about Euler's rotation theorem.
Normally I would think that an asteroid could rotate around two axes simultaneously. But Euler's rotation theorem states that:
In geometry, ...
- 905