Is there a potential for a non-conservative force?  Even it cant represented by any relation with force.?
821839
potential cannot be associated with a non conservative force. potential energy is the energy which is stored inside the body when you do some work against that force. If it is a non conservative force, than the work done to move something to the same point through different paths will be different. Which means that potential at a given point may have more than one value which is practically impossible. That's why potential can never be associated with a non conservative force/field.
503357
Maybe it's not really a mass generated force at all. It could just be that it is masses effect on space-time. Actually, I guess it could be that it's not the earth for example that causes gravity but space-times effort to put matter in clumps and roll it into a ball. The bigger the mass the more space-time there is to push against it. Einstein's example was to imagine a bowling ball sitting on a large rubber sheet. The bowling ball would deform the sheet and the curvature of the rubber represented gravity in space-time. The closer you get to the ball the more curvature you have. That would explain why gravity is weaker with added distance.
939985
Well, yes, the gavity is pulling you down, and you are not moving. So you are subjected to an acceleration and are not moving.\nMind you, one can argue that the *resulting* force is zero, as the ground is reacting with an equal and opposite force to your weight; if you take it that way, to have an unbalanced force should result in motion.
212531
Finally a way for me to pick up that 7-10 split!  :)\n\nI agree with the basic premise of oscillating assuming a vacuum (since we are assuming no molten core, why not a vacuum as well?).\n\nBut, depending on the direction of the hole in relationship to the rotational axis of the earth, wouldn't the ball start bouncing against the sides of the hole due to the mechanics similar to that of a Foucault Pendulum?
121693
cmon...dont u know basic physics...just calculate the resultant of these 2 forces\nanswer= [(132)^2 + (181)^2]^1/2\nif this makes sense!!
634270
i think the problem is when you try to apply general relativity - or gravity - to interaction betwen subatomic particles - especially when trying to understand how these forces worked during the first instant after the big bang. you wind up with nonsencial results - like zero equals one.
46266
When it is said that that the net force is zero, it means yes, there is gravitational forces acting at the cenetr of the earth, but being at the center, with equal amounts of earth mass in every direction, the forces pulling on you at the center would all cancel each other out, resulting in the <perception> of having no forces acting on you, when in reality, gravity is always at work.
794706
That's a good question.  I don't know if this is answering your question, but I do know that mass cannot be created or destroyed due to the Conservation of Mass.
621034
Gravitational potential or electrical potential?
771573
OK, I have found both these forces.\n\nWhat should I do now?
1179277
the importance of physics?? it is very imp cos if there wasn't pysics we wouln't know how things work. there wouldn't be neither electricity nor magnetism. you wouldn't live as comfortable as you live today...is this enough? :)
53644
The same 4 fundamental forces in the universe: Strong, weak, electromagnetic and gravity. Of course, it should be noted that we have made substantial progress into showing that the weak and electromagnetic forces are two aspects of the same force, and that even the strong force can be associated very closely with the electroweak force. There are many attempts to connect all 4 forces into one universal force law, but this effort is not yet complete and the results are not yet universally accepted. \n\nThere are some indications that we do not really understand gravity very well, because we do not understand its quantum aspects too well, and there is even evidence emergy for some sort of repulsive gravitational phenomenon from astronomical observations. \n\nThe discovery of any other forces would be quite surprising, and very big news.
505249
no.its the force produced due to the movement of other particles(electrons).so..
188872
There is no such thing as an unbalanced force in physics because of Newton's Third Law: for every action, there is an equal and opposite reaction. So for every force that exists, there has to be an opposing force that balances it out.
792846
Since it is a movie, the lightsaber is imaginary.  But, taking physics into consideration, it is theoretically possible to "hold" energy within a confined space.  The only way to do this would be the manipulation of a gravitational field and/or a magnetic field.  Take the sun for instance.  It is a superheated ball of gases that has become so hot that it is classified as a new form of matter: plasma.  Just like all celestial bodies, the sun is held together by gravity.  Now if the future of science allows us to manipulate gravity into a small shaft about one meter long...well that's just something to think about.  :)
771568
Basically you have the right idea. Use momentum (mass x velocity) for the motion and the sudden change in speed and/or direction (acceleration) and you get force x time = kinetic energy trying to rip you apart or squash you like a bug.
113961
Simple explanation:\n- - - - - - - - - - - -\n\nThere are four fundamental forces that act on objects:\n\nGravity\nElectromagnetism\nWeak (responsible for radioactive decay)\nStrong (holds the nucleus together)\n\nFrom Newton's 2nd law, a force F= m a where m is the mass of the object and a is its acceleration (acceleration describes how an object changes speed, so it has to do with movement of the object). \n\nGravity is one of the 4 possible choices for F. So when the force of gravity exists, things accelerate, according to Newton's 2nd law. \n\nDeeper Exploration:\n- - - - - - - - - - - - - \n\nOne can ask the question, but WHY does gravity create a force? Einstein described it in the general theory of relativity as a bending of the space we live in (called spacetime: 3 space dimensions and one time dimension), and then specified that objects are required to take the shortest path in this curved space. \n\nHowever, that still does not describe WHY gravity does this. Current belief (but not yet proved) is that two objects with mass exchange messenger particles called gravitons (not yet observed) that communicate the force of gravity between then (electromagnetism has photons, or light as messenger particles, weak and strong forces also have messenger particles, so people think that gravity should as well). \n\nAnother interesting thread of thought in physics is that all 4 of the four fundamental forces are aspects of the same thing (just like electricity and magnetism are aspects of the same thing). So far, weak forces and electromagnetism have been shown to have the same origin when looked at in the right way, and it is possible that the strong force has the same origin as well (called a Grand Unified Theory, or GUT). Physicists are trying to find a framework whereby all 4 forces are aspects of the same universal force (called a Theory of Everything, or TOE).\n\nHowever, one can still ask, why is it this way? Well, although we have a few theories here and there, very little is proven, and the basic bottom line is, we do not know WHY gravity makes things move. \n\nBut we have a lot of clues and equations and we can make very accurate predictions for how gravity works in many cases.