please help thank you! The equation that states mathematically the principle of conservation of mechanical energy...

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The equation that states mathematically the principle of conservation of mechanical energy for an isolated system is Ki=Kf Ki

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Answer 1

Answer #1

The total mechanical energy is written as

E = K+ U

where K is the kinetic energy and U is the potential energy. For E to be conserved from initial state E_i to final state E_f we must have

E_i = E_f

K_i + U_i = K_f + U_f

option second is correct

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Answer 2

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