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Question

Q10. A. Describe the relationship between frictional resistance and: (i)Ship speed; (ii) the wetted area; (iii) surface roughness; (iv) The length of the vessel.  B.A ship travels at 15 knots and has a QPC of 0.865 with a delivered power of 2600 KW. The apparent slip is 5% and the real ship is 28%Calculate the total resistance and the wake friction.

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