The sign of many physical quantities depends on the choice of , Ay coordinates. For example, a, for free-fall motion can be negative or positive, depending on whether we choose upward or downward as positive. Is the same true of work? In other words, can we make positive work negative by a different choice of coordinates? Explain.
The sign of many physical quantities depends on the choice of , Ay coordinates. For example, a, for free-fall motion can be negative or positive, depending on whether we choose upward or downward as positive. Is the same true of work? In other words, can we make positive work negative by a different choice of coordinates? Explain.
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Transcribed Image Text:The sign of many physical quantities depends on the choice of
coordinates. For example, ay for free-fall motion can be negative or positive, depending on whether
we choose upward or downward as positive. Is the same true of work? In other words, can we
make positive work negative by a different choice of coordinates? Explain.
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