What is the shift in the longitudinal center...

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Question 1 of 2066636ee728f7522a1c5188c7

What is the shift in the longitudinal center of gravity if 200 short tons are discharged from 30 feet forward of amidships on a MODU with LCG 1.5 feet forward of amidships, and displacement 9,000 short tons?

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🔍 Key Concepts

• LCG (Longitudinal Center of Gravity) movement when weight is added or removed • Moment calculation: weight × distance from amidships (or from original LCG) • Shift in LCG formula: shift = total moment change ÷ new displacement

💭 Think About

• When you discharge weight, does the ship’s LCG move toward where the weight was, or away from it? Think about the physical effect. • First find the trimming moment created by removing 200 short tons from 30 feet forward of amidships. How do you calculate that moment? • After removing the 200 short tons, what is the new displacement you should use in the denominator when calculating the LCG shift?

✅ Before You Answer

• Be sure you are using short tons consistently in both the removed weight and the displacement. • Confirm whether the distance for the moment is measured from amidships or from the original LCG position. • After finding the LCG shift, check the direction (forward or aft) based on where the removed weight was located and the sign of the moment.

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