What is centrifugal and centrepital force ?
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Answer:
We experience it when we round a corner in a car or when an airplane banks into a turn. We see it in the spin cycle of a washing machine or when children ride on a merry-go-round. One day it may even provide artificial gravity for space ships and space stations.
But centrifugal force is often confused with its counterpart, centripetal force, because they are so closely related — essentially two sides of the same coin.
Centripetal force is defined as, "the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation," while centrifugal force is defined as "the apparent force that is felt by an object moving in a curved path that acts outwardly away from the center of rotation," according to Merriam Webster Dictionary.
Note that while centripetal force is an actual force, centrifugal force is defined as an apparent force. In other words, when twirling a mass on a string, the string exerts an inward centripetal force on the mass, while mass appears to exert an outward centrifugal force on the string.
"The difference between centripetal and centrifugal force has to do with different 'frames of reference,' that is, different viewpoints from which you measure something," said Andrew A. Ganse, a research physicist at the University of Washington. "Centripetal force and centrifugal force are really the exact same force, just in opposite directions because they're experienced from different frames of reference."
If you are observing a rotating system from the outside, you see an inward centripetal force acting to constrain the rotating body to a circular path. However, if you are part of the rotating system, you experience an apparent centrifugal force pushing you away from the center of the circle, even though what you are actually feeling is the inward centripetal force that is keeping you from literally going off on a tangent.
A major difference between centrifugal and centripetal force is the direction of each.
Centrifugal takes place along the radius of the circle from the center out towards the object.
For centripetal, it is the opposite, taking place also along the radius of the circle, but from the object in towards the center.
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