Question 2524 Deck Safety

The correct answer is A) 2.15 feet. The formula to calculate the GM (metacentric height) from the natural rolling period is: GM = (T^2 * B) / (0.9 * L) Where: T = Natural rolling period (6 seconds) B = Beam (20 feet) L = Length (131 feet) Plugging in the values, we get: GM = (6^2 * 20) / (0.9 * 131) GM = 2.15 feet The other answer choices are incorrect because they do not match the result obtained from the formula. This formula is a standard way to calculate GM from the known natural rolling period, beam, and length of the vessel.