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A 7-kilogram iron ball falls to the ground from some height h meters starting from rest. 7kg PE = 5000 J 7kg Kinetic Energy just
A 7-kilogram iron ball falls to the ground from some height h meters starting from rest. 7kg PE = 5000 J 7kg Kinetic Energy just before hitting ground= 4900 J a) Determine height fallen. Show your work. b) Not all PE has been converted to KE, why
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