15. A box is moved from the floor up to a tabletop but gains no speed in the process. Is there work done on the box, and if so, what has happened to the energy added to the system?

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15. A box is moved from the floor up to a tabletop but gains
no speed in the process. Is there work done on the box,
and if so, what has happened to the energy added to the
system?
Transcribed Image Text:15. A box is moved from the floor up to a tabletop but gains no speed in the process. Is there work done on the box, and if so, what has happened to the energy added to the system?
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