Question: Note the negative ( - ) sign for work, W , in the above equation. The choice of a negative or a positive sign depends

Note the negative

(-)

sign for work, W

,

in the above equation. The choice of a negative or a positive sign depends on the way you describe the system.

Explain when the work term would have a positive magnitude and when it would have a negative magnitude. In your response, utilize the work equation, which is below, to justify your response.

= -

Pext x

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