A jet propelled boat is discharging water at a speed of 10 m/s relative to the ship in a jet of 0.02 m² corss-sectional area. If the boat moves through water with a velocity of 20 km/h, determine: (i) The resistance of the vessel and power exerted by the jet, and (ii) The efficiency of jet apart from losses in pumping machinery. Assume that inlet orifices face the direc- tion of flow. [Ans. (i) 890 N; (ii) 6.91 kW; 71.4%]

A jet propelled boat is discharging water at a speed of 10 m/s relative to the ship in a jet of 0.02 m² corss-sectional area. If the boat moves through water with a velocity of 20 km/h, determine: (i) The resistance of the vessel and power exerted by the jet, and (ii) The efficiency of jet apart from losses in pumping machinery. Assume that inlet orifices face the direc- tion of flow. [Ans. (i) 890 N; (ii) 6.91 kW; 71.4%]

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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