It is not possible to move an object in a circular motion at the same time , explanation ?

It is not possible to move an object in a circular motion at the same time , explanation ?
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We know that velocity of an object is a vector quantity. Velocity depends on both value and direction. When an object moves in a circular path , its direction always changes. And since velocity also depends on the direction , the velocity changes with the change of direction. And so it is not possible for any object to move in a circular motion.
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