Why is the work done by a centripetal force is always zero?
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As the centripetal force acts upon an object moving in a circle at constant speed, the force always acts inward as the velocity of the object is directed tangent to the circle. ... Thus, the work done by the centripetal force in the case of uniform circular motion is 0 Joules
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because there is an opposite equivalent centrifugal force actting outwards
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