A sailor pulls a boat horizontally alongside a dock for 10.0 m with a rope angled at 40.0°. He uses a force of 100.0 N. How much work did he do on the boat? A. 766 J B. 643 J C. 1.00 * 10^3 J D. 4.00 * 10^4 J

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A sailor pulls a boat horizontally alongside a dock for 10.0 m with a rope angled at 40.0°. He uses a force of 100.0 N. How much work did he do on the boat? A. 766 J B. 643 J C. 1.00 * 10^3 J D. 4.00 * 10^4 J

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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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here is the situation described in your problem: |dw:1433096507947:dw|
yes:)
now, we have to apply this formula:

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Other answers:

which formula?
\[W = Fd\cos \left( {40} \right) = 100 \times 10 \times \cos 40\]
766.0444 so about 766 J is our answer?
yes! That's right!
yay!! :D
:D

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