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What is a Bowspirt?

Author(s): 
A vessel is anchored in 3 fathoms of water and the cable passes over a sheave in the bowspirt which is 6 ft above the water. If the cable is hauled in at the rate of 1 ft/second, how fast is the vessel moving through the water when there is 5 fathoms of cable out? What is the acceleration at this time? Byerly, Calculus 1895 Click here to reveal the answer

"What is a Bowspirt?," Loci (February 2008)

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