Question 2666 Deck Safety
70% to passYour vessel displaces 475 tons. The existing deck cargo has a center of gravity of 2.6 feet above the deck and weighs 22 tons. If you load 16 tons of ground tackle with an estimated center of gravity of 8 inches above the deck, what is the final height of the CG of the deck cargo?
The correct answer is D) 1.79 feet. To calculate the final height of the center of gravity (CG) of the deck cargo, we need to use the principle of conservation of momentum. The final CG is determined by the weighted average of the original deck cargo CG and the new ground tackle CG. The calculation is: (Original CG x Original Weight + New CG x New Weight) / (Original Weight + New Weight) = Final CG. Plugging in the given values, we get: (2.6 ft x 22 tons + 0.67 ft x 16 tons) / (22 tons + 16 tons) = 1.79 ft. The other options are incorrect because they do not correctly apply the principle of conservation of momentum to calculate the final CG.
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