All Questions
Tagged with rotational-kinematics acceleration
55
questions
3
votes
3
answers
1k
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instantaneous velocity center
The instant center of rotation, also called the instantaneous velocity center is the point fixed to a body undergoing planar movement that has zero velocity at a particular instant of time. For ...
- 4,377
1
vote
3
answers
3k
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Why the similarity in the Equations of Motion for Rotational and Rectilinear Motion?
These are the equations of motion given constant acceleration, for first rectilinear and then rotational motion.
Rectilinear Motion:
Rotational Motion:
While the variables have changed, and the ...
- 283
21
votes
8
answers
112k
views
A simple derivation of the Centripetal Acceleration Formula?
Could someone show me a simple and intuitive derivation of the Centripetal Acceleration Formula $a=v^2/r$, preferably one that does not involve calculus or advanced trigonometry?
- 373
0
votes
2
answers
733
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How to treat an exercise about the rotational acceleration during a throw?
Because I am studying on my own, I don't have anyone to talk to about this when I don't understand, and I was wondering if someone could help me with a concept in rotational kinematics:
At the ...
- 101
1
vote
1
answer
2k
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How to model a very simple spinning wheel
First off, I'm not a physics person, just a lowly software engineer with below average math skills. What I've written is a simple animation of a spinning wheel using C++/GTK/Cairo. It allows the user ...
- 233
1
vote
1
answer
2k
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Angular acceleration and linear acceleration
I have a small confusion. I learned very recently that all particles of a rotating body have the same angular acceleration but different linear acceleration (same for velocity as well).
But how is ...
- 355
1
vote
1
answer
537
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Have I calculated Angular Acceleration correctly?
I am teaching myself basic mechanics from a standing start. I am trying to understand Angular Acceleration and have set myself a problem to solve. My answer 'feels' wrong, so I'd like some help to ...
- 11
0
votes
1
answer
205
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Kinematics with non constant acceleration II [closed]
I'm getting crazy with this problem and I think that it's pretty simple.
An helicopter's helix is spinning at initial speed $w_0=200\ rpm$, all
of a sudden the motor stops and it decreases its ...
- 411
0
votes
1
answer
22k
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What is negative angular acceleration?
I was doing an exercise in physics and I noted that the angular acceleration was negative. What does that mean?
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2
answers
1k
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Extracting acceleration vector from rotated aircraft
Suppose we have an aircraft with accelerometer measuring accelerations along each axis. It is mounted in a way so it is perpendicular to the plane in all axes (that should be obvious). We also have ...
- 127