General Physics Work and Energy Fall

The law of conservation of energy can be written as the following: [1] ΣU1 + ΣK1 + ΣWnc = ΣU2 + ΣK2 . U = potential energy. K = kinetic energy. Wnc = non-conservative work. If the speeds of all objects are the same at the beginning and end, then the above equation can be simplified and solved for the non-conservative work: [2] ΣK1 = ΣK2 ................
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