All Questions
Tagged with rotational-dynamics centripetal-force
105
questions
4
votes
4
answers
408
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Is centripetal acceleration independent of linear acceleration in accelerated circular motion?
Can we say that there is a relationship between them, or are they independent of each other? why?
Like does $a_c=v^2/r$ imply $a_c$ and $a_{tangential}$ are related?
I am very confused by this ...
- 145
1
vote
2
answers
269
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Rotating rope with a ring
I have this ideal system. There is a bar with negligible mass and a ring(a point) with mass $m$. Bar is rotating with angular speed $\omega$.
If I see that system from Non-inertial reference system I ...
- 27
1
vote
1
answer
380
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Why people feel outward force in rotor ride?
I know centrifugal is fictious force but what is possible reason for the force that people feel in rotor ride outwards.
The reason for people not falling down is friction force which is in vertical ...
- 129
4
votes
1
answer
6k
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Tension in a ring rotating about its own axis
A ring of mass m and radius R is placed on a smooth horizontal table and is set rotating about its own axis in such a way that each part of the ring moves with a speed v. What is the tension in the ...
- 55
-1
votes
1
answer
119
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Circular motion of a ball suspended from the rim of a rotating table [closed]
Susppose there is a ball with radius $r$ suspended to the rim of a circular spinning table with radius $R$ by a string with length $l$ which makes an incline angle $\theta$ with the vertical axis.
If ...
- 1
3
votes
2
answers
3k
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What happens when the centripetal force is equal and opposite to the centrifugal force? [duplicate]
We say that centrifugal force is fictitious, yet we still use it in some problems. If the centrifugal force is equal and opposite to the centripetal force wouldn't that make the net force zero?
-4
votes
2
answers
385
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How the centripetal forces work on a point in a rigid body? [closed]
I know it was a question but when I asked last time I did not know the answer. It has been suggested that the question is not clear, it's badly written. Now I know the answer and I can introduce them ...
2
votes
1
answer
236
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Centripetal acceleration of Centre of mass of rolling body
Does the centre of mass of body rolling on a stationary floor experience centripetal acceleration downwards towards the IAOR (instantaneous axis of rotation) which here is the point of contact of body ...
- 164
3
votes
4
answers
192
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Centripetal Force Formula Confusion
After I finished studying and trying to test my knowledge to see what I have learned, I realized I am confused about the centripetal force formula:
$$F_c= \frac{mv²}{R}$$
which I know is also equal to ...
- 288
0
votes
1
answer
52
views
Centripetal force related problem [closed]
If a bike rider constantly keeps rotating on a vertical circular path, what is the required minimum velocity on the highest point of the circle to keep him on the circular path without falling?
0
votes
2
answers
341
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Is the acceleration of a rotating body always it's centripetal component? [closed]
For constant circular motion where a rotating mass accelerates angularly.
Would the linear acceleration of the rotating mass always be equal to its centripetal acceleration
e.g. The earth's ...
- 331
0
votes
0
answers
332
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Ball in a spinning disc
So imagine we have a disc at rest and a ball at the middle of its radius. Now the disc starts rotating with constant angular velocity. Where will the ball go? Will it remain at $R/2$?
Watch this ...
- 1,648
0
votes
1
answer
375
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Normal force in uniform circular motion [duplicate]
When we consider a person on a ferris wheel, the forces acting on him at the top are the normal force and gravity. The acceleration of the person is downward (towards the center), so by Newton's ...
- 11
1
vote
1
answer
3k
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Tethered ball - Centripetal force
I'm learning physics on Khan academy and i have stumbled upon a task that I cant completely understand and I'm a type of person that cant continue the studying until everything that I have read is ...
0
votes
5
answers
1k
views
How do you calculate the distance from center for centripetal force equation for long objects such as board or a hammer?
I am trying to calculate the centripetal force for an enlongated object like a fan blade. Where do I measure to to get the distance from center. Would I measure from the center to the end of the ...
- 117