What is the difference between centripetal and centrifugal force?

Answer 1

CENTRIPETAL FORCE IS A FORCE WHICH ACTS ON A BODY WHEN IT IS IN CIRCULAR MOTION.FC=MV^2\R.IT IS ALWAYS TANGENTIAL.

CENTRIFUGAL FORCE IS AN IMAGINARY FORCE WHICH COMES INTO ACT WHEN CENTRIPETAL FORCE IS NOT SUFFICIENT.IE IT ALSO ACTS DURING CIRCULAR MOTION.

Answer 2

1.When the trajectory of an object travels on a closed path about a point --
either circular or elliptical -- it does so because there is a force pulling
the object in the direction of that point. That force is defined as the
CENTRIPETAL force. It has not been more simply, or directly stated than by
one Isaac Newton in his famous "Principia" (definition 5):
"A centripetal force is that by which bodies are drawn or impelled, or any
way tend, towards a point as to a center."

This force can be demonstrated by twirling a ball on a string, and either
actually or conceptually cutting the string. The ball's trajectory is then a
straight line tangential to the closed trajectory at the instant the string
is cut. This is also illustrated by what happens to the ball in the "hammer
throw" of track and field. The athlete spins the heavy ball around several
times then lets it fly. It takes off in a straight line (not quite, because
the hammer is actually not spun parallel to the ground, but that is not
relevant).

That is really all that is necessary. The term CENRTIFUGAL force appears to
have come about because of a mistaken perception that there is a force that
operates in the opposite direction as the CENTRIPETAL force. But that is a
misconception. The "pull" that is felt by the ball on a string or by the
hammer thrower is the force that has to be applied toward the center, to
keep the ball from flying off tangentially, not radially.

Unfortunately, the terms are often used interchangably, or incorrectly.
Newton's term, which I think should take the prize is CENTRIPETAL.


2.Centrifugal force is a virtual force. It is not really a force. There are
some situations you can be in that have you accelerating without speeding
up. One of these is a carnival ride that spins around in a circle at a
constant speed. I know one where you feel pressed against the wall very
tightly, and then the floor drops out. Most people would believe they were
moving steadily, with there bodies being pressed tightly against the wall
(outward, in a cetrifugal direction). This is centripetal force. This is
not really what happens.

When moving fast, a great deal of force is required to make you change
direction. Your body "wants" to continue in a straight line. The curved
wall gets in the way. The wall pushes in against your body. The "outward
force" is just your body trying to move in a straight line. It is not a
force at all. It is inertia, your body resisting the effects of the forces
it feels.

Virtual forces exist when your body is accelerating. Objects moving in a
steady direction at a steady speed appear to accelerate, as you see them.
Place a ball on a car seat while moving at a steady speed. Have the driver
slam on the brakes. Observe the ball appear to be pushed forward and off
the seat. The ball just continued to move forward. It is the car that felt
the backward force of the brakes. Hang a heavy ball from a spring in an
elevator. As the elevator begins to rise, the ball begins to move, as if
someone pushed down on it. It is the ball just "trying" to stay still as
the elevator accelerates upward. While rising, you can stop the motion. It
will start again when the elevator stops. The faster the acceleration (the
more you can "feel" it in your body), the stronger the virtual forces appear
to be.

Answer 3

It's a bit tricky to answer.

Imagine you're standing beside a carousel, and someone else is riding around with the carousel. You would then see him going around, and hence, you would say that a centripetal force is acting on him (pointing towards the center). Your friend on the other hand would se himself being stationary in his inertial system (the carousel) - and since he isn't moving, the total force must be zero. In order to do this however, He will have to "invent" an outward pointing centrifugal force, the exact same size as the centripetal force.

The centrifugal force is only something one talk about when being in an accelerated inertial system, and hence, it is referred to as a fictive force. Since the surface of the Earth is an accelerated inertial system - centrifugal forces are very real in e.g.. finding the best places to shoot rockets to the moon, these being places near the equator where the centrifugal force is great.

Answer 4

Centrifugal force is a virtual force. It is not really a force. There are
some situations you can be in that have you accelerating without speeding
up. One of these is a carnival ride that spins around in a circle at a
constant speed. I know one where you feel pressed against the wall very
tightly, and then the floor drops out. Most people would believe they were
moving steadily, with there bodies being pressed tightly against the wall
(outward, in a cetrifugal direction). This is centripetal force. This is
not really what happens.

When moving fast, a great deal of force is required to make you change
direction. Your body "wants" to continue in a straight line. The curved
wall gets in the way. The wall pushes in against your body. The "outward
force" is just your body trying to move in a straight line. It is not a
force at all. It is inertia, your body resisting the effects of the forces
it feels.

Virtual forces exist when your body is accelerating. Objects moving in a
steady direction at a steady speed appear to accelerate, as you see them.
Place a ball on a car seat while moving at a steady speed. Have the driver
slam on the brakes. Observe the ball appear to be pushed forward and off
the seat. The ball just continued to move forward. It is the car that felt
the backward force of the brakes. Hang a heavy ball from a spring in an
elevator. As the elevator begins to rise, the ball begins to move, as if
someone pushed down on it. It is the ball just "trying" to stay still as
the elevator accelerates upward. While rising, you can stop the motion. It
will start again when the elevator stops. The faster the acceleration (the
more you can "feel" it in your body), the stronger the virtual forces appear
to be.

Answer 5

Centrifugal force is coming out from the center, and it is tangent to the rotating body at the periphery. Centripetal force which is into the center pont. The use of Spoke in a bycycle is meant for this

Answer 6

Miller's description of these two systems as "dwelling places" is particularly appropriate, for in addition to their respective ethotic appeals, expert systems and intelligent agents each instantiate a distinctive spatial tendency. Expert systems centralize and automate expertise, which suggests a centripetal (or inward) movement, while intelligent agents are decentralized and engaged with the environment, a movement that is centrifugal (or outward

some ways, these systems are sides of the same coin. Following Daniel Dennett's tongue-in-cheek definition of scholars ("a library's way of making another library"), it's possible to see the users themselves as an expert system's "intelligent agents." As the etymology of centripetal and centrifugal suggests, each of these systems relies on a center-periphery model, with the primary difference between them a matter of where the user (or the computer) is located.

They are sides of the same coin as well in Miller's account, for both represent potentially extreme positions

Answer 7

centrifugal force: the force that causes something to move outward from the center of rotation.
centripetal: An inward-directed force that confines an object to a curved path; the result of other forces.

centrifugal is not not a real force (pseudo-force), centripetal is real

this link has all u need: http://encarta.msn.com/encnet/refpages/search.aspx?q=centrifugal+force

Answer 8

Centrifugal force does not exist. Centripetal force is real.

Answer 9

Almost none It's like saying the rope is putting the force on your arm when you're swinging a rock around your head and not the inertia of the rock. When people tell you you're using the centrifugal term wrong, they're mostly just being annoying jerks who mistake trivia for intelligence.

Answer 10

centripetal is away from the centre and centrifugal is towards the center

Answer 11

cnntripetal force is not a new type of force.pre known forces as weight,normal reaction,tension etc are provider of centripetal force i.e.in different different cases of circular motion these forces which acts towards centre of circular path,named as centripetal force.centrifugal force is taken into account when observer is in noninertial frame of reference.this force is also called pseudo force as centrifugal force =(mass of the body)(acceleration of frame).it doesn't satisfy usual definition of force.i.e.(mass of the body)(acceleration of body).