Is centripetal force greater than centrifugal force?

In summary, resultant force is directed towards the center of a circular path because the mass is accelerating towards the center and the net force must be in the same direction. Centripetal force is the force responsible for keeping an object in circular motion, and centrifugal force is a fictitious force that only appears in a rotating frame of reference. The direction of the resultant force cannot be changed by the magnitude of centrifugal force.
  • #1
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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  • #2
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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  • #3
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.
 

1. What is the difference between centripetal and centrifugal force?

Centripetal force is a force directed towards the center of an object's circular motion, while centrifugal force is an apparent force that acts in the opposite direction of centripetal force. Centrifugal force is a result of inertia and is not a true force.

2. Which force is greater, centripetal or centrifugal?

Centripetal force is always greater than centrifugal force because it is the force that keeps an object in circular motion. Centrifugal force is only an apparent force and does not actually exist.

3. How do centripetal and centrifugal forces work together?

Centripetal force is responsible for keeping an object moving in a circular path, while centrifugal force acts in the opposite direction and tries to pull the object away from its circular path. These forces work together to create a balanced circular motion.

4. Can centripetal force and centrifugal force be equal?

No, centripetal force and centrifugal force can never be equal. Centripetal force must always be greater in order to keep an object in circular motion. If the forces were equal, the object would move in a straight line.

5. What are some real-life examples of centripetal and centrifugal forces?

An example of centripetal force is the force that keeps a satellite in orbit around the Earth, while an example of centrifugal force is the force that pulls water outwards from a spinning bucket. Other examples include the rotation of a merry-go-round, the movement of cars on a curved track, and the swinging of a yo-yo.

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