Is centripetal force greater than centrifugal force?

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SUMMARY

The discussion clarifies that centripetal force is not greater than centrifugal force; rather, centrifugal force is a fictitious force perceived in a rotating frame of reference. The resultant force acting on an object in circular motion is directed towards the center due to the nature of centripetal force, which is essential for maintaining circular motion. If centrifugal force were greater, the object would not follow a circular path but would instead rise, contradicting the principles of circular motion.

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  • Knowledge of inertial and fictitious forces
  • Basic grasp of coordinate systems in physics
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StevenJacobs990
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Why is resultant force directed towards the center of the circular path? Is it because centripetal force is greater than centrifugal force?
If the centrifugal force is greater, then the ball will rise? (If the string doesn't snap)
 
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StevenJacobs990 said:
Why is resultant force directed towards the center of the circular path?
The mass is accelerating towards the center, so the net force had better be towards the center.

StevenJacobs990 said:
Is it because centripetal force is greater than centrifugal force?
Centrifugal force is a 'fictitious' inertial force that only appears when viewing things from a rotating frame. I suggest forgetting about it until you need to deal with such frames.
 
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StevenJacobs990 said:
Is it because centripetal force is greater than centrifugal force?
If that would be the case, the pendulum would not move in a circle.

Where else do you expect the resultant force to point to? Especially if you know that it moves in a circle?

StevenJacobs990 said:
If the centrifugal force is greater, then the ball will rise? (If the string doesn't snap)
Centrifugal force is a fictitious force in a rotating coordinate system. It depends only on the coordinate system, so it cannot magically increase.
 

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