Centrifugal Definition and 344 Threads

Hi. This isn't a homework problem, but I am asking for the sake of adding to my understanding of the topic. In class, we have just begun uniform circular motion on the horizontal plane. Now, i understand that for an object to be accelerating (changing direction in this case), there needs...

If you jumped on an orbital/halo.. Would you carry on flying through the air indefinately or does the centrifugal force push you towards the ground even though you are not in any physical contact with the centrifugalised object?? On a planet we're attracted back towards the ground by gravity...

Centrifugal "gravity" Imagine a giant circular ring, which spins to generate a type of "gravity" (think of the video game "halo" even) My problem with this is: 1. A man is walking along this spinning ring. He feels gravitational effects no doubt. 2. The man takes a ball, and tosses it...

47. In an amusement park ride called the Roundup, passengers stand inside a 16m diameter rotating ring. After the ring has acquired suficient speed, it tilts into a vertical plane. a. suppose the ring rotates once every 4.5 s. If a rider's mass is 55kg, with how much force does the ring pus...

A train is running smoothly along a curved track at the rate of 50 m/s. A passenger standing on a set of scales observes that his weight is 10% greater than when the train is at rest. The track is banked so that the force acting on the passenger is normal to the floor of the train. What is the...

What I want to do is maintain a gas at very high pressure and temperature for propulsion purposes. The problem is containing a gas at high pressure requires a thick walled tank, and the resulting mass would obviate the advantage of having the gas at high pressure. So what I'm considering is...

OK here is my nutty design problem. I want to make a centrifugal nut cracker to crack hazelnuts. The basic design premise is very simple when the nuts are thrown perpendicular to a surface at a desired speed the shells split very nicely into two pieces. Anyways I want to make a centrifugal...

I need article or wide information about this.I looked for on [PLAIN]www.but[/URL] I couldn't find enough inf.can you help me?:rolleyes:

Hello. I am just curious if anyone else imagines what I imagine whenever I hear about the universe expanding at an increasing rate. I simply imagine an infinitely large spinning disk littered with marbles. The vantage point from any marble would show all the other marbles flying away faster...

Hello, this is my first post here :) The question I'm having problem with follows: how long would one day have to be so that there would be weightlessness on the equator? (the teacher said that the correct anwser would be roughly 5 minutes) Solving this by myself I couldn't reach any other...

(see also attached .doc) There is an ideal gas in the centrifuge; no flows, everything is steady (not very steady in fact - process is adiabatic). If gas is incompressible, it is very easy: P=0.5 rho (w*r)^2 But my gas is compressible, and it's a trouble. I started from distribution law of...

i don't quite understand the difference between the two. i know centripetal means towards the middle and centrifugal goes out but i can't quite relate that to the problems. for example, if you are twirling a ball on a string above your head in a circle, the centripetal acceleration points...

Hi, first post. I'm a math/physics, uh, underachiever and I'm looking for more resources on Centrifuges. I apologize in advance for the inaccuracy of my use of physics terminology. I'm interested in finding a formula that calculates both the amount of force and angle of force of tangential...

hi, what is difference between Centripedal & Centrifugal ? One is in inertial frames and the other in rotating frames? one is 'true' force and the other is fictitious force? thanks

Can someone enlighten me why it is mentioned in the thread https://www.physicsforums.com/showthread.php?p=769852" that when the water is viewed from a rotating frame of reference it experiences an outward centrifugal force. This does not make sense to me.

"Centrifugal" Force Say you have a cylinder of radius r with πr2h liters of water in it. If you put it on some sort of turntable and spin it with an angular velocity ω, is there a way to tell what the shape of the water will be? I mean, if you look at the cross section will you be able to...

Hi, I'm attempting to workout what is the G-force applied to an object that is traveling at 1 m/s/s in a perfect circle with a radius of 5m. The circle is verticle not horizontal. The total weight being propelled is 300KG and is running on the inside of a track. There is no air resistance or...

I am having problems explaining the a certain group of inanic acquaintences that just can't understand that centrifugal force, is a fallacy. I have explained centripetal force and Newtons first law, but they still don't get it. could any of you help me here?

My aerospace application requires a very lightweight vacuum chamber. Could you rotate a cylindrical chamber about its vertical axis to provide outward pressure to support the pressure of the air? How fast would it have to rotate to provide an outward pressure of 15 lbs./sq. in.? The initial...

Centrifugal force? Hi people, Can someone explain to me what is centrifugal force? Please tell me the equations related to it. I have tried by best to calculate it, but I have drawn a blank.

excluding the answer of centrifugal forces, why is there a tension in a piece of string with a mass attached on the end, going in a HORIZONTAL circular movement, when the mass is always accelerating towards the centre anyway??

Hi Peoples, Newbie here who would really appreciate some advice! I'm developing a machine to emulate G-Force but within a defined area therefore i need to now what forces are at play and what is required to sustain for example 1G or 2G upto a 5G range. If this was a confusing question...

In class, I was told that the "centrifugal force" is merely an effect, and I can dig that. However, isn't the supposed "centripetal force" in actuality also merely an effect?

hey guys, I know this topic has been discussed before, but I have a stupid question about it: we know that in circular motion we always have an acceleration towards the center (centripetal acceleration) but we also have a force that points radially outwards (centrifugal force). Some...

=mv^2 ----------R r How do you calculate the r on the side? Also is centrifugal force = to magnet force?

Ok so I'm reading up on some physical (no that's probably not the right word, enlighten me!) phenomenas in this case the tides. So as far as I've understood the water on the surface towards the moon is affected both by Earth's gravity (which is bigger) and the moon's, and therefore positions...

I got this from Wikipedia (under the definition of centrifugal force): I need some clarification here. I had understood that the "ficticious forces" of centrifugal and coriolis were "inertial effects," and that with GR the gravitational force was also an inertial effect. The Wikipedia...

Heres something interesting I noticed the other day. I had just made a cup of coffee in a ceramic mug, and had just finished stirring it. Absent mindedly, I started picking up my spoon and dropping it into the cup at roughly half second intervals. On doing this, I noticed something very...

An enclosed cylindrical* (disc) vessel one inch thick and five inches in radius holding two pounds of fluid at ambient atmospheric pressure (14psi?)and being spun at 30,000 rpm's. Assume the centrifugal force acting on the fluid creates a pressure of 1,000 psi. The question is ... "If the...

I have a doubt. Let consider an universe of only 2 planets with the form of 2 dishes on the same z axis. The 2 dishes are rotating 1 respect to the other. Can we experience centrifugal forces only on 1 of them?

I have a tool that is used in CNC metal cutting machines. This tool rotates and we have a machine that calculates the amount of immbalance. The known values are, rpm, amount of imbalance (gmm), diameter. I'm trying to find a formula that calculates the centrifugal force that is generated...

I'll start with Centripetal. When you spin a bucket with water up and down, Centripetal Force is acting on the water to keep it in. I know what a Centrifuge is, and what it does, but what is Centrifugal Force. It's something like particles of water pushing to the bottom of the bucket or...

Here is another problem I'm having trouble understanding: A narrow but solid spool of thread has radius R and mass M. If you pull up on the thread so that the center of mass of the spool remains suspended in the air at the same place, (a) what force must you exert on the thread? (b) How much...

I have a simple math problem. I know the basic formula, but am too far removed from math lessons(50 years of age) to figure it out. I know you require like units to derive an answer. A 200 gram object is rotated around a 4' radius at 100 mph. What is the centrifugal force? I know(at least...

Hello guys! Back in my first physics class in college, a few years ago, my prof said that centrifugal force does not exist, and something about there is something called the centrifugal force effect that we seem to think we feel, but it really is centripetal force. I took this as physics...

Hello guys! Back in my first physics class in college, a few years ago, my prof said that centrifugal force does not exist, and something about there is something called the centrifugal force effect that we seem to think we feel, but it really is centripetal force. I took this as physics...

http://www.appeal-democrat.com/articles/2004/01/19/news/local_news/news2.prt

Is the "centrifugal force" fictitious or just incidental? Is the "centrifugal force" fictitious or just incidental?

Imagine a universe with nothing in it exept for the earth. Now if you were to put a satalite up in space with a geosyncronized orbit, the gravity of Earth would not pull the object down. but how can that happen if the Earth is not spinning? At least not spinning relative to anything(because...

is there such a thing as centrifugal force? what is it?

is there such a term as centrifugal force? what exactly is it??

can someone please compare and contrast the phenomenon of the centripetal force versus the centrifugal force.

Centripetal and centrifugal forces What do you think about the following division, i.e. distinction between centripetal and centrifugal forces? gravipetal-gravifugal electropetal-electrofugal magnetopetal-magnetofugal nucleopetal-nucleofugal cohesipetal-cohesifugal Every known...

Ok, for some reason, I cannot understand exactly how centrifugal force works or the concept behind it. For example, when an Army helicopter is flying through the air and turns, why don't the soldiers slide towards the door or even fall out? Because I know that military choppers do not contain...