2.19 The two-dimensional rectangular water jet strikes a flat plate as shown. Calculate the reactive force R. What percentage of the total mass flux is diverted down the plate?
2.19 The two-dimensional rectangular water jet strikes a flat plate as shown. Calculate the reactive force R. What percentage of the total mass flux is diverted down the plate?
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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2.19 The two-dimensional rectangular water jet strikes a flat plate as shown. Calculate the reactive force R. What percentage of the total mass flux is diverted down the plate?
Hint: For this problem, remember that you get to pick where you place your coordinate system, and more importantly, how you orient it! Also, note that rho u A has units of mass/time and is usually called mdot. Use Conservation of Mass and Conservation of Momentum to get two equations involving m1dot, m2dot, and m3dot. Eliminate m3dot and solve for m2dot in terms of m1dot. Make use of Bernoulli’s equation.
Transcribed Image Text:1 in. X 20 in.
100 fps
R
30°
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