The airplane weighs 144100 lbs and flies at constant speedand trajectory given by 0 on the figure. The planeexperiences a drag force of 73620 lbs.a.) If = 11.3°, determine the thrust and lift forcesrequired to maintain this speed and trajectory.b.) Next consider the case where is unknown, but it isknown that the lift force is equal to 7.8 times the quantity(Fthrust Fdrag). Compute the resulting trajectory angle-and the lift force in this case. Use the same values for theweight and drag forces as you used for part a.УллуFdrag10.ӨFthrustcc 102013 Michael SwanbomBY NC SAFliftFweightThe lift force acts in the y' direction. The weight acts in thenegative y direction. The thrust and drag forces act in thepositive and negative x' directions respectively.Part (a)The thrust force is equal tolbs.The lift force is equal toPart (b)The trajectory angle is equal todeg.The lift force is equal tolbs.lbs.

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Answered: The airplane weighs 144100 lbs and…

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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If a missile takes off vertically from sea level and leavesthe atmosphere, it has zero drag when it starts and zerodrag when it finishes. It follows that the drag must be amaximum somewhere in between. To simplify the analysis,assume a constant drag coefficient, CD, and constant verticalacceleration, a. Let the density variation be modeled by thetroposphere relation. Find an expression for thealtitude z* where the drag is a maximum. Comment onyour result.
Can you answer this with work enegy theorem or principal
A large transport aircraft shown below whose gross weight is 100,000 lb. The airplane pitching mass moment of inertia Iy=40,000,000 lb-s2 in. The airplane is making a level landing with the nose wheel slightly off the ground. The reaction on the rear wheels is 319,000 lbf inclined at such an angle to give a drag component of 100,000 lb and a vertical component of 300,000 lb. Determine: a) The intertial forces on the airplane. b)The resultant load on the pilot whose weight is 180 lbm and whose location is as given in the figure.
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= 3570 T AC =144 Example: 1.5 ft It is desired to determine the drag force at a given speed on a prototype sailboat hull. A model is placed in a test channel and three cables are used to align its bow on the channel centerline. For a given speed, the tension is 40 lb in cable AB and 60 lb in cable AE. Flow 4 ft Determine the drag force exerted on the hull and the tension in cable AC. Choc ug the h- as the free hod- DApress the
You are designing an airfoil for a new hobby RC plane. Because of your limited knowledge, you have mistakenly approximated your airfoil as an ellipse with a = 75mm and b = 12mm. Here, “a” is the depth of your wing and “b” is the thickness. Your plane travels through the air at approximately 20mph (8.9m/s). As it does so, skin friction produces a drag-induced heat of 800W on your wind, of length 1m. Properties of Air: k = 0.025 W/mK, Pr = 0.72, v = 1.847 x 10−5, u = 16.84 x 10−6, p = 1.2 kg/m3, B = 1/Tf (ideal gas), TInfinity = 25oC a) What is the Reynold’s number? Hint: “D” is taken to be the thickness for an elliptical crosssection. b) What is the Nusselt number? c) What is the convection coefficient? d) What is the average temperature of your wing? Assume an ellipse perimeter of approximately 200mm.
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Type here to search X The large, newly planted tree shown in the figure below is kept from tipping over in a wind by use of a rope as shown. It is assumed that the sandy soil cannot support any moment about the center of the soil ball, point A. Estimate the tension T in the rope if the wind is 75 km/hr. See the figure for drag coefficient data. 4x F2 4, # O DI » $ F4 U=75 km/hr DII % F5 Rope * 45 F6 A Scale drawing ☀ F7 & 2.1m PrtScn F8 Home F9 End 28°F Cloudy F10 POUP FI PgDn
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Calculate Induced Drag please

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