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    { "id" : "http://dbpedia.org/resource/Reactive_centrifugal_force"
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        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "In classical mechanics, a reactive centrifugal force forms part of an action–reaction pair with a centripetal force. In accordance with Newton's first law of motion, an object moves in a straight line in the absence of any external forces acting on the object. A curved path may however ensue when a physical acts on it; this force is often called a centripetal force, as it is directed toward the center of curvature of the path." ] ,
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