Each sub system taken alone has an ability to continue to rotate due to the 148 units of kinetic energy by the end of each interval of movement, which is the same as a potential energy in {HEAD ~ the initial position} of {TAIL ~ movement} 
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Each sub system taken alone has an ability to continue to rotate due to the 148 units of kinetic energy by the end of each interval of movement , which is the same as a potential energy in { HEAD ~ the initial position } of { TAIL ~ movement }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL