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?
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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
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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