Physics Help Forum Fluid dynamics problem

 Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum

 Nov 14th 2017, 03:53 PM #1 Junior Member   Join Date: Nov 2017 Posts: 1 Fluid dynamics problem Can you help me to solve this problem ? A jet-propelled boat 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.) Attached Thumbnails
 Nov 15th 2017, 02:12 AM #2 Senior Member   Join Date: Apr 2015 Location: Somerset, England Posts: 747 So what have you done towards this? Hints Describe the Physics of the situation in words. What does the jet motor add energy too?
 Nov 15th 2017, 06:28 AM #3 Senior Member     Join Date: Jun 2016 Location: England Posts: 377 It might help to remember that the mass of one litre of water is one kilogram. __________________ ~\o/~

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