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John Mallinckrodt wrote:
... I believe that if we restrict our attention to that question,
use the most common definition of work (the one that is presented in
introductory physics--i.e., work done = path integral of the applied
force dotted with the displacement of the point of application),
Yes, that's the only definition of force that makes sense
to me.
and
answer the question within the context of the introductory course, the
correct answer will be equal to the acquired bulk kinetic energy of
the anchor and the boat.
To the extent that that excludes the boater, I disagree.