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I remember learning at school (many years ago) that physically speaking, there was really no such thing as a centrifugal force, 'flying away from the centre'. Puzzlingly, the notion of the centrifugal force is still perpetuated, especially in the media, and I have yet to hear anyone attempt publically to correct the disillusion.Newton's Laws state that force equals mass times acceleration, and that every force must have an equal and opposite reaction, for the situation to be stable. When a mass rotates about another - as in a planet around the sun, or a ball at the end of a piece of string - it is the 'tension' (i.e. force) between the two masses that supports circular rotating motion. If that 'tension', whether gravitational or through a piece of string, breaks, then the masses will fly apart, but the rotating mass will not fly away perpendicularly, instead tangentially (at a tangent), indicating that there was no 'centrifugal force' (away from the centre), rather a 'centripetal' force (towards the centre), keeping the mass in stable circular motion.Is this argument correct? I have always believed so, but it has never been validated by anyone I know.[diagram=381_0]