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if change in potential energy = change in kinetic energy the forumla is
PEi + KEi = PEf +KEf
but change in kinetic energy by itself is: KEf- KEi
and change in potential energy is: PEf-PEi
so should change in potential energy = change in kinetic energy therefore be
KEf-KEi = PEf-PEi ?
I was looking at some questions and they were done differently...
My thinking is that it should be the first one--right?
PEi + KEi = PEf +KEf
but change in kinetic energy by itself is: KEf- KEi
and change in potential energy is: PEf-PEi
so should change in potential energy = change in kinetic energy therefore be
KEf-KEi = PEf-PEi ?
I was looking at some questions and they were done differently...
My thinking is that it should be the first one--right?