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How To Solve Ship's New Draft

A vessel is alongside a berth where the density is 1000 kgs/m3  with a draft of 36'-04". What would she draw in salt water having a density of 1026 kgs/m3?

GIVEN:

 Old density = 1000 kgs/m3 
     Old draft = 36' 04" or 36.33 ft
New density = 1026 kgs/m3 

WHAT IS ASKED:

Ship's new draft

SOLUTION:

This is the formula in getting ship's new draft.



Step 1. We have to multiply ship's old draft by old water density.

            36.33 ft x 1000 = 36330 ft

Step 2. Divide the answer of step 1 by the new water density.

            36330 ÷ 1026 = 35.40936 ft

So the answer is 35' 05".

Wondering where I got 5 inches? I convert 0.40936 ft into inches by muliplying it by 12.

0.40936 ft x 12 inches/1 ft = 05" 

1 comment:

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