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2006-10-11 03:38:56 · 4 answers · asked by Anonymous in Science & Mathematics Earth Sciences & Geology

4 answers

There's no such thing as centrifugal force. Not really.

There is such a thing as centripetal force, though, which is calculated by:

F = -mω²r, where m is the mass, ω is the angular velocity, and r is the radius.

2006-10-11 03:44:29 · answer #1 · answered by Jay H 5 · 1 0

Equal and opposite to the centripetal force.
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One is real, one is imaginary and does not exist.

There is no such thing as "centrifugal" force.

Centripetal force is the force present in circular motion.
Centripetal force is always pointed inward, towards the center of rotation. A centripetal force causes a centripetal acceleration. Any acceleration causes a change in velocity. Since the centripetal force is always pointed inward, radially along the circular path, it is always pointed perpendicularly to the velocity vector (which is always tangent to the circle), which makes it possible to have a constantly changing velocity with a constant speed.


There is no "other half" of centripetal force, there is no balancing force necessary....actually if there were a balancing / opposing force, that would prevent circular motion from happening.
In order for there to circular motion there MUST be an acceleration...there is no question about that, the velocity is constant changing, therefore there is an acceleration.
From Newton's 2nd law, in order for there to be an acceleration, there MUST be a NET force acting on the object, the key word here is net. If there is a force which balances / counter acts centripetal force, there would be no NET force. So now we realize that there must be a force...but what direction?
Look at how the velocity changes....it is always changing towards the center, thus the force must be pulling it toward the center....centripetal force.

2006-10-11 10:46:35 · answer #2 · answered by Rainbow 4 · 1 0

centrifugal force is a pseduo force...there is no such real force which is centrifugal by nature

the direction of centrifugal force is opposite to the line joining the radius and the point...i.e opposite to centipetal force
and is of equal magnitute

2006-10-11 15:01:41 · answer #3 · answered by PIKACHU™ 3 · 0 0

strenth of centrifugal force is mv^2/r. it is directed radially outward.

2006-10-11 13:01:43 · answer #4 · answered by juschill 1 · 0 0

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