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RenegadeOfPhunk

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Page: 2 of 21
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-23-2004, 12:50 AM
#60
You don't agree that a centrifugal force would by definition have to be a force that push/pulls an object that is going in a circle directly away from the center of rotation? Yes, but you have to be clear on which object your talking about. OK - I'...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-23-2004, 12:23 AM
#58
What about in the event you aren't driving with any kind of real speed (i wont get into detail about how much speed that is, but lets just say i dont remember the last time i crashed into my car door), do you just keep going straight without your car...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 11:48 PM
#56
Are you really trying to tell me that you can not make a turn in a car without crashing into the door? If the movement is truly circular (not just slightly curved - you need to keep up :) ), your travelling with any kind of real speed, and your in...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 11:14 PM
#54
Edit: just read your last post, are we talking about the car or the person/door, it is a huge difference. Ermm, nope. Not any huge difference at all. Friction between the car and the road causes the centripital force which makes the car take a circ...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 10:54 PM
#52
Here - check the example of the car out about 1/6th of the way down this page. THis might help you: http://www.physicsclassroom.com/Class/circles/U6L2a.html Notice that all the forces acting on the car are identified, but the ONLY force making the...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 10:36 PM
#51
What I am saying, is that what you are saying is not what is causing the circular motion. No Shok, I am absolutely right. 100%. What you are failing to take into account here is the initial inertia facing perpundicular to the centripital force. TH...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 10:14 PM
#49
Well, thanks for making what you believe is happenning clearer. Unfortunately, what you beleive is happenning doesn't match up with reality. Please read up in your physics books. Once you come to the realisation that the only forces involved in circ...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 9:48 PM
#47
The door supplies a normal force in the direction opposite of the momentum, which is not directly away from or towards the center of the circle. Aha - so you think there is a re-actionary force - opposed to the direction of momentum! which is actin...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 9:19 PM
#45
Shok, if you did not agree with my previous statement, then you do not fully understand the implications of Newton's third law, and as such, were not gonna get very far. Your confusion on this matter is evident in the way you are contridicting yours...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 8:49 PM
#43
If I am not mistaken, you are claiming that the "centrifugal" force is being applied to the door. In actuality, the applied force is in the direction of the momentum of the person, and the normal/centripedal force is a result of the car, pu...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 8:29 PM
#41
If you have a heavy object on a rope, and you swing it in circles, then let go, it will continue travelling in a straight line given the tangent of the circle at the point where the object was when the rope was released. Your not keeping up with t...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 8:24 PM
#39
We do NOT call the outward force centrifugal force because it's not actually causing an acceleration on the string. But ET - in your example something IS being accelerated outward - the thing (I assume person) swinging this ball around them!! The...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 7:59 PM
#37
The diagram above is absolutely correct - in my way of thinking... A centrifugal force would thus have to pull an object traveling in a circle directly away from the center of that circle. I can think of no such force, but if anyone else can I will...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 7:36 PM
#35
:) ..tell ya what, I'll have another piece if it makes you feel better mate :) It's pretty tasty stuff ;) Thanks for at least acknowledging the point I've been trying to make... This isn't really about deciding who's right and who's wrong. It's - l...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 7:11 PM
#33
The law of the conservation of momentum says that when two objects collide, momentum is conserved, but may be transferred. A sufficient momentum being given to the door and in the direction of the movement of the object could tear the door off the hi...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 6:44 PM
#31
Shok_Tinoktin, Again, you are 5 steps behind in this debate... ...please don't make the mistake of taking me for a fool Shok - like ET did at the beginning of this thread... I know physics... If the door suddenly didn't exist then yes, you would c...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 6:21 PM
#29
In the specific instance of the car door, were only debating what deserves to be called 'centripital' or 'centrifugal'. I just want to clarify this has nothing to do with imaginary or real -we both know this force is real, no matter what we call it....  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
10-22-2004, 4:43 PM
#26
Heh - indeed Spider, this thread probably shouldn't have been ressurected. ;) ...but now that it has, and now that ET has gone and said this: The door is accelerating you inwards, towards the center of the circle it is moving in. THIS is centripet...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
09-23-2004, 12:58 AM
#17
No worries ET. I dont' think you should blame yourself. It seems to me that nobody has a straight answer on this - not even the 'professionals'... Seems to me that this all came about because a lot of people used to use the term 'centrifugal' force...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
09-22-2004, 4:16 PM
#15
As I look more and more into various explinations from various sources about why centrifugal force is 'imaginary', I notice a reccuring theme... They always talk about a very specific type of senario where - for example - a person is travelling in a...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
09-22-2004, 7:31 AM
#14
Centripetal acceleration is outwards. Why is the word 'centripital' - meaning centre-seeking - used to describe a force acting in a totally opposite direction?! (i.e. 'outwards' from the centre?!) Were the earth to start spinning much faster, eve...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
09-22-2004, 1:30 AM
#12
I am currently exerting the exact same amount of gravitational force on the Earth as the earth is exerting on me. A bizarre concept, but quite true. The reason I am so affected is because of our masses. The force has a more pronounced effect on me an...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
09-21-2004, 3:14 PM
#10
It takes a big man to say stuff like this, especially on an anonymous internet forum. You certainly have MY respect for doing so. Heh -I've seen too many truly hideous examples of people who knowing full well they've got it wrong trying anything th...  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
09-21-2004, 2:48 PM
#7
Yes -I think I'm getting what your saying ET. ...all the forces I know of and understand are present in your explinations. And while it does seem to be a renaming exersise, I think I'm understanding why these naming changes are probably helpful. .....  [Read More]
Posted in: Centripidal and centrifugal forces
  RenegadeOfPhunk
09-21-2004, 2:17 PM
#5
Well - after looking more into the concept of 'pseudo' forces, I must admit I do have a bit of egg on my face, since I didn't even think such a term existed. So unreserved apologies to you ET. I was certainly wrong to think that the idea of 'imagina...  [Read More]
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