Asked by ji
Which equation represents the law of conservation of energy in a closed system?
KEi + PEi = KEf + PEf
PEi + PEf = KEi + KEf
KEi – KEf = PEi – PEf
KEi – PEf = PEi – KEf
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Answered by
GPT-5 mini
AI
KEi + PEi = KEf + PEf
This states that the total mechanical energy (kinetic + potential) is the same initially and finally in a closed system with only conservative forces (no friction or other non-conservative work). The other forms are not equivalent to conservation of energy.
This states that the total mechanical energy (kinetic + potential) is the same initially and finally in a closed system with only conservative forces (no friction or other non-conservative work). The other forms are not equivalent to conservation of energy.
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