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Fluid dynamics problem

Mada9598
in Homework Help

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Can you help me to know how to solve this problem ?

* A jet-propelled boat as shown in Fig. 6 is moving at a velocity of 10m/s. The river is flowing against the boat at 5m/s. Assuming the jet flow rate is 0.15m3/s and its discharge velocity is 20m/s, what is the propelling power of this boat? (Jet boats like this are in use.)

IMG_20171115_004325.jpg

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