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If no outside forces act on the system then the total mechanical energy is conserved. Therefore we can say that the sum of the e p and the e k anywhere during the motion must be equal to the sum of the the e p and the e k anywhere else in the motion. Mechanical Energy In Physics Problems Dummies…

That is it doesn t change. The sum of the kinetic and potential energy of the object or system is called the total mechanical energy. Conservation Of Mechanical Energy Mechanical Energy Siyavula The principle says that if the net work done by nonconservative forces is zero the total mechanical …