A truck experiencing drag is able to reach a maximum velocity of v₁ = 30.5 m/s. Ithas cross-sectional area A₁ = 1.6 m^2 and coefficient of drag CD,1 = 0.86. The cityis having a parade and you want to use your truck as a float. After fitting yourtruck with signs and posters, the new cross-sectional area is A₂ = 3.3 m^2, and thecoefficient of drag has increased to CD,2 = 1.38. What is the new maximum speedof your truck? Give your answer to 1 decimal place. Assume the density of air is1.204 kg/m^3 and does not change, and assume the accelerating force providedby the engine does not change.Backup link to image (opens in new tab).A₂

Given:Maximum velocity of truck for area A1=1.6 m2, v1=30.5 m/sDrag coefficient for A1=1.6 m2,…

Answered: A truck experiencing drag is able to…

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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1. An airplane weighs 36,000 lb. and has a wing area of 450 fte. The drag equation is C, =0.014 + 0.05C} . It is desired to equip this airplane with turboprop engines with available power such that a maximum speed of 602.6 mph at sea level can be reached. The available power is assumed to be independent of flight speed. Calculate the maximum rate of climb and the speed at which it occurs. Given: W = 36,000 lb S = 450 ft² C, = 0.014+0.05C V = 602.6 mph max THPy = cons tan t THP AV constant Max EHP Point of THP, REQD. Flisht Speed. V Vmax 602.6 mph Required: Max R.C. and Vmax R.C. Horsepower, hp
1. The given information is as follows: Cd=1.4 (coefficient of drag) ¥=10 ft/sec (velocity) Ƴ=62.4 #/ft3 g=32.3 ft/sec2 a. What is the water pressure in PSF against the obstruction? b. If the pier is 6 ft wide and 14 ft deep, what is the Resultant Pressure on the WHOLE obstruction? c. If the obstruction is fixed into the bottom of the river (mud line), what is the bending moment at the mudline on the obstruction?
A new sports car has a drag corfficient of 0.30 and a frontal area of 18.5 ft<, and is traveling at 90 mi/h. How much power (in ft-lb/s) is required to overcome aerodynamic drag if air density is 0.002378 slugs/ft?
2. A 0.10 cm-radius sphere falling in air (T= 20°C) at a speed of 25 m/s. Determine the following: a) Skin drag force b) Form drag force c) Total drag force. 3. The raindrops of around 3 mm diameter fallat 5 mis, while drizzle with droplets of 0.3 mm diameter falls at 1.5 m's. what is the terminal velocity of such raindrops and terminal velocity of the drizzle?
A new sports car has a drag corfficient of 0.30 and a frontal area of 21ft^2, and is traveling at 110 mi/h. How much power (in ft-lb/s) is required to overcome aerodynamic drag if air density is 0.002378 slugs/ft^2?
Problem 4. A cork ball (SG = 0.21) with a diameter of D = 0.30 m is tied to an object on the bottom of a river as %3D shown. (a) For an angle of B = 30°, estimate the speed of the river current neglecting the weight of the cable and the drag on it. (b) Briefly discuss how the angle changes for a range of speeds from 0.4 m/s to 10 m/s. U
The drag equation for the Gofaster 172 is: D = 0.0003v2A. D is drag in pounds; v is airspeed in feet/second; and A is aircraft frontal area in square feet. At maximum airspeed, D = 140 lbs. How much does max airspeed INCREASE if the fuselage is narrowed such that frontal area A is reduced from 16 ft2 to 14 ft2? Give the answer in ft/sec AND mph. drag is 140 lbs. at maximum airspeed, regardless of frontal area. the question is: what is the INCREASE in max airspeed, not what is the max airspeed.
8.) A circular cylinder 4m long and 3m in diameter is in an air stream. The flow velocity is 5 m/s L parallel to the axis of the cylinder. Given that the coefficient of drag, CD on the cylinder is 1.3, and the density of air is 1.225 kg/m3. What is the force on the cylinder? A. 0.090 KN B. 0.14 KN C. 0.24 KN D. 0.91 kN
The large block shown is x = 72 cm wide, y = 54 cm long, V3 and z = 9.0 cm high. This block is passing through air (density of air p = 1.43 kg/m³) at a speed of v = 7.98 m/s. Find the drag force Fa1 acting on the block when it has the velocity v and a drag coefficient I = 0.902. レ X Fa1 = N V1 Find the drag force Fa2 acting on the block when it has the velocity v2 with a drag coefficient I = 0.992. Fa.2 = > TOOLS Find the X10 block when it has the velocity vz with a drag coefficient I = 1.17.
If your lift to drag ratio is 15 for airline A flight and the airplane weighs 15,000-lb for L/Dmax, what’s the speed for L/Dmax at 22,500 lbs.?
Icebergs can be driven at substantial speeds by the wind.Let the iceberg be idealized as a large, flat cylinder, D >> L,with one-eighth of its bulk exposed, as in Fig.. Letthe seawater be at rest. If the upper and lower drag forcesdepend on relative velocities between the iceberg and thefluid, derive an approximate expression for the steady icebergspeed V when driven by wind velocity U.
Explain the mechanism of drag and lift force generation for the wing using Newton's law. Here are the hints : If the wing does not exist, the velocity distribution is uniform at v=U_inf. Therefore, the x-directional velocity of the air is deceralated by the wing. This implies that the wing applied a force in the -x-direction to the air (Newton's second law). In other words, the air flow applied a force in the x-direction to the wing (Newton's third law). This is the mechanism of drag generation.

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