Questions tagged [centrifugal-force]

Centrifugal force is an inertial (pseudo or fictious) force used in a non-inertial frame of reference in order to apply the Newton's laws of motion. If your question is about centripetal force, which is a real force that points towards the center of a circular trajectory, use the tag "centripetal-force" instead.

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Is there really a southwards 1 N force on me due to my latitude?

I live in the UK at approx. $53 ^\circ$ latitude. The horizontal component of my centripetal acceleration due to the Earths spin works out at $1.3$ N. That's like the weight of an apple. Is that ...
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Why does circular motion stop when the rope breaks?

why is it that when a ball spinning on a rope has a centripetal force larger than the tension of the rope (due to exceeding the maximum velocity), the rope breaks and the ball goes off in a tangent? ...
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Plane and gravity force [closed]

If a plane, once in flight, continued to accelerate on a straight trajectory, but without exceeding the escape velocity, and without considering stall or lift effects, would it leave Earth despite the ...
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Is inertia the same as centrifugal force?

My cousin told me that inertia is just a pseudo force that act on a thing, because he said that inertia is the same as centrifugal force. But when I search for the true fact in Google, I found that ...
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Does Acceleration due to Gravity take into consideration the centrifugal acceleration due to Earth's spin?

Is the gravitational acceleration we consider only the attraction due to the Earth's gravity or is it that of gravity plus the attraction due to Earth spinning? We know that earth produces an ...
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Is this vector diagram of the forces at play in turning flight correct?

See this image from page 5-24 of the FAA's Pilot's Handbook of Aeronautical Knowledge (2016 edition). For the purpose of this question, let us take the Newtonian perspective that Weight is an actual ...
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How do I quantitatively explain the effects of the centrifugal force from inertial frame of reference?

So I learn earth science in school, and today, I was taught about the variation of earth's gravity according to latitude, and I've been told it's because of the combination of the fact earth isn't ...
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Analytical expressions for acceleration due to zonal harmonics of a gravitational field?

Wikipedia's Geopotential_model; The deviations of Earth's gravitational field from that of a homogeneous sphere discusses the expansion of the potential in spherical harmonics. The first few zonal ...
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Rewriting the Lagrangian in terms of the constant(s) of motion doesn't work. Why? (spherical pendulum) [duplicate]

I am trying to solve for the equations of motion to simulate a spherical pendulum. I decided to use the spherical coordinates. The Lagrange equation is, $$ L=T-V=\frac{1}{2}m\left(l\dot\theta\right)^2+...
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What is centrifugal force relative to? [duplicate]

Edit- the answer is mach's principle and mach's principle is sketchy so there is no good answer. So I understand that centrifugal force is really just inertia and stuff but I still have a question. ...
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How does GR treat centrifugal force/acceleration?

We know GR turns gravitation induced acceleration into curvature in spacetime. But in GR, what happens to the acceleration due to the centrifugal force? And similarly, the acceleration due Euler or ...
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How to represent a coordinate system precessing around the centre of force?

Is the centre of force same as the centre of mass of two rotating objects? If we set the coordinate system that is precessing around the centre of force, it will be a non-inertial frame of reference. ...
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Would an astronaut, alone in space with no reference point, get dizzy? [duplicate]

I’m not quite sure of the biology behind it, but for my question let’s assume that spinning of any kind would cause dizziness as a more dense object would sink to the outside of the body showing that ...
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If centrifugal force is a pseudo-force then why we can observe its effects outside of rotating frame?

I know that centrifugal force only "exists" when the reference frame is rotating. In this case, if there is centripetal force, there must also be centrifugal force so that bodies on the rotating frame ...
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How can we artificially reduce gravity on a planet to live there? [closed]

It is relatively simple to increase the impression of gravity by using spin, either on a low gravity planet (inside a rotating parabola) or in orbit (inside a rotating cylinder). However, I can't ...
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What is the reaction force of centripetal force? Can centrifugal force be its reactive force? But both of them act on differnet bodies right?

In my textbook it is written that centrifugal force is not the reactive force of centripetal force because it acts on differnet bodies. Then what will be the reactive force (as Newton's 3rd law states ...
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Can we use $F_{\rm net} = ma$ for fictitious force? [duplicate]

For instance, in a non-inertial frame of reference, the net force of an object in a circular motion = (Centripetal force - centrifugal force) = 0. So, my question is... Can the net force = ...
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Creating Artificial Gravity In A Smaller Craft Where Energy Was Not An Issue - Energy Required To Do So?

If you had a craft say the size of the spaceship in Guardian Of The Galaxy, big enough for a few rooms, etc. Now say you wanted to create gravity(artificial using centrifugal force) and energy was ...
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Find first lagrange point from potential energy of binary system [duplicate]

I am trying to solve a question of a course that I need to TA tomorrow and I am not sure what I am missing here. You first have to derive the potential energy of a test source in a binary system, ...
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Centrifuge + doppler

Does the Doppler effect come into play in any interesting or useful way if a radio transmitter or receiver is spin in a centrifuge? For example, one whose radius was the same as the wavelength of the ...
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Is gravity the Earth's centripetal acceleration? Should the gravitational acceleration be equal to the centripetal acceleration at the equator?

I understand that different forces can act as centripetal forces (shear, tension of a string etc) but in the case of the rotating earth, is it really the gravitational force the centripetal force that ...
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Is the acceleration of a pendulum at the lowest point in circular motion $=0$?

If we are in the frame of a pendulum (accelerating frame) it will have a centrifugal force and it's weight acting vertically downwards and the tension of the string acting vertically upwards. Now the ...
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Extra energy in rotating frame of reference

Consider a particle at rest in frame of reference $S$. Its energy is $$E_S=0$$ (ignoring things like rest mass energy etc). Now suppose I move to a frame $S'$ which moves at speed $v$ in $S$. The ...
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Why bicycle deviates from equilibrium if I leave the handle?

If I cycle at high speed and my hands are holding the handle, in this case, the system: bicycle+me is effectively a rigid body and by conservation of angular momentum (of wheels), I don't fall aside. ...
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Centrifugal force vs reactive centrifugal force

After reading (https://en.wikipedia.org/wiki/Reactive_centrifugal_force) (especially third paragraph of the introduction) and comparing it with the answer by Bob Jacobsen posted here (Why does a ...
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Why does a rotating non-rigid object elongate?

A non-rigid object (such as a beam, rod, blade, etc.) experiences elongation due to the (fictitious) centrifugal force when rotated (as opposed to rigid bodies and simple mass points). This elongation ...
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What is happening with the horizontal component of the Earth's centrifugal acceleration?

We know that the equator has the highest centrifugal acceleration caused by the rotation of the earth (a = 0.034m / s2) but it is negligible because the vector of the acceleration of gravity is much ...
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Centrifugal force in a vacuum

Okay, so there's something I've been trying to puzzle out, and after quite a bit of searching around I've only found almost-but-not-quite answers. And since I'm a chemist, not a physicist, even my ...
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Calculating the pressure in a rotating bucket [closed]

By the way, I am not quite convinced that the solution should be $\frac{1}{2}\rho\omega^2r^2$. I think it should be $\rho\omega^2r^2$. Appreciate any help.
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Centrifugal force in a non-inertial reference frame

There is something I don't quite undestand about the role the centrifugal term plays when describing motion in a non-inertial reference frame. In most Classical Mechanics books, you can find similar ...
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Why do we weigh less on equator when centrifugal force isn't a force at all? [duplicate]

Why would we weigh less on equator as the weighing machine measures the force by which we push ground and that should not change if are on equator or poles?
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Solar Oblateness: Understanding the force balance formula and solar radius in arcseconds

I have 2 questions regarding the following exam-style question and solution: Given a solar mass of $M_{\odot}=2.0 × 10^{30}\,$kg, a solar radius of $R_{\odot}=7.0 \times 10^8\,$m and a rotation ...
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Determine force of particle along trajectory [closed]

The problem: I have a trajectory in cartesian plane defined by points. A particle with mass $m$ runs through this trajectory, with a defined initial velocity. At every moment, there is a force $F$ ...
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Baseball In an O'Neil Cylinder

I am trying to understand the physics of a baseball game in a rotating spacecraft such as the O'Neil cylinder seen in the movie Interstellar. Imagine a cylindrical spacecraft of radius $R$ rotating ...
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What exactly causes particles to drift toward the bottom of a tube in a centrifuge?

As I understand, centrifuges can effectively create gravitational fields that are a thousand times stronger than the Earth's. And it is this pseudo-gravitational force that causes particles to sink ...
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What are the effects of centrifugal and Coriolis forces on an object moving in a rotating reference frame?

In a rotating reference frame, we usually come across the following two pseudo forces: Centrifugal force: $f_\mathscr{centrifugal}=-m\omega\times\omega\times r$ Coriolis force: $f_\mathscr{coriolis}=...
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Physical importance of centrifugal force and Coriolis force in the context of the restricted 3-body problem

In the textbook Galactic Dynamics (Binney and Tremaine), the restricted three-body problem to find the trajectory of a test mass that orbits in the combined gravitational field of two masses $M$ and $...
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Roche lobes in binary star systems

While studying mass transfer in binary star systems, I came across the concept of Roche lobes and the role of the inner Lagrangian point $L_1$, as shown in the adjoining figure. However, I am having ...
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Clarification on circular motion and pseudo-forces [duplicate]

The way i interpret pseudo-forces is that its a mathematical correction that makes the conclusion of the observer in an accelerated frame correct. And I also believe that this "pseudo-force" has no ...
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Artificial gravity on free falling objects

Assume the following scenario: -two objects in constant velocity free fall side by side to each other (imagine two astronauts in orbit) -one of the two astronauts is inside a non rotating ring ...
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3answers
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Centripetal and Centrifugal acceleration/force [duplicate]

Centripetal force acts towards the centre and necessary to keep an object in circular motion. But centrifugal force is equal to the magnitude of centripetal force and acts in outwards direction and ...
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Advisory speed limits on turns

I was just thinking about why many corners have advisory speed limits that are less than the highway speed limit, does it have to do with centripetal acceleration?
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If I kept a body in a groove on a frictionless circular table, and rotate the table with a constant angular velocity, what will happen to the block? [duplicate]

I have read that it would slide off the table, because apparently in the frame of the table it experiences a centrifugal force outwards, but I can't seem to agree with that logic. In the ground frame ...
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Bicycles are also balanced by gyroscopic effects, right? [duplicate]

I think that the wheels of a bicycle are rotating when it is moving forward, so there must be gyroscopic effect, so the bicycle is balanced by gyroscopic effect to some extent, right?
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Can opposing centripetal forces help us play catch in a space station?

Let's say we are inside a wheel in our brand-new space station, which spins to simulate gravity, using the centrifugal force. We decide to celebrate our ground-breaking success by play catch in space. ...
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Where do we see centrifugal acceleration?

A body in circular motion always possesses centripetal acceleration which is felt by a person sitting at the center of mass. It will not be felt by a person viewing the motion from the ground frame. ...
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Pressure at depth $h$ of a spinning bucket at top of swing

This was a question posed to me some time ago and it has haunted me ever since. Hints and suggestions would be awesome. Say someone is spinning a bucket of water in a vertical circle of radius $r$ ...
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Why $g$-force increase with radius and centrifugal force decreases? [duplicate]

Trying to understand the 2 formulas and the relations between radius. Common sense will tell me that centrifugal force increases while we are on a curve with a short angle , as newtons law formula ...
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Is Upside-down Racing Possible?

Based on the calculations I have done, upside-down racing seems to be possible. But in my mind, and certainly others too, it seems outlandish and impossible. Here is what I have come up with, please ...
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Y the relation among centripetal, centrifugal and gravitational force exerred on the moon is different from an object on the earth surface?

I read that since the earth vid rotating on its axis ,an object on the earth surface experiences a centrifugal force because the object is also moving around the earth's axis.So,that centrifugal force ...

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