Question 2525Deck Safety70% to pass
Your vessel has a metacentric height of 1.12 feet and a beam of 60 feet. What will your average rolling period be?
AI Explanation
The correct answer is C) 25 seconds.
The formula to calculate the average rolling period (T) of a vessel is:
T = 2π * √(GM/g)
Where:
- T is the average rolling period in seconds
- GM is the metacentric height in feet
- g is the acceleration due to gravity, which is approximately 32.2 ft/s²
Given:
- Metacentric height (GM) = 1.12 feet
- Beam = 60 feet
Plugging these values into the formula:
T = 2π * √(1.12/32.2)
T = 25 seconds
The other options are incorrect because:
A) 23 seconds is too low for the given metacentric height and beam.
B) 35 seconds is too high for the given metacentric height and beam.
D) 20 seconds is too low for the given metacentric height and beam.
Related Questions
#2523 If your vessel has a GM of one foot and a breadth of 50 feet, what is your vessel's estimated rolling period? #2524 Your vessel measures 131 feet long by 20 feet in beam. If the natural rolling period at a draft of 8'-03" is 6 seconds, what is the GM? #2527 You are on a vessel that has a metacentric height of 1.0 foot and a beam of 40 feet. What can you expect the rolling period of the vessel to be? #2528 Your vessel measures 122 feet long by 18 feet in beam. If the natural rolling period at a draft of 6'-09" is 5 seconds, what is the GM? #2529 Your vessel's has a beam of 60 feet, and you observe a still water rolling period of 25 seconds. What is the vessel's metacentric height?