A truck experiencing drag is able to reach a maximum velocity of v₁ = 30.5 m/s. It has cross-sectional area A₁ = 1.6 m^2 and coefficient of drag CD,1 = 0.86. The city is having a parade and you want to use your truck as a float. After fitting your truck with signs and posters, the new cross-sectional area is A₂ = 3.3 m^2, and the coefficient of drag has increased to CD,2 = 1.38. What is the new maximum speed of your truck? Give your answer to 1 decimal place. Assume the density of air is 1.204 kg/m^3 and does not change, and assume the accelerating force provided by the engine does not change.

A truck experiencing drag is able to reach a maximum velocity of v₁ = 30.5 m/s. It has cross-sectional area A₁ = 1.6 m^2 and coefficient of drag CD,1 = 0.86. The city is having a parade and you want to use your truck as a float. After fitting your truck with signs and posters, the new cross-sectional area is A₂ = 3.3 m^2, and the coefficient of drag has increased to CD,2 = 1.38. What is the new maximum speed of your truck? Give your answer to 1 decimal place. Assume the density of air is 1.204 kg/m^3 and does not change, and assume the accelerating force provided by the engine does not change.

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

See similar textbooks

Similar questions

Skydiver Luke jumps with his parachute of diameter D = 12m out of an airplane. The combined mass of the parachute and Luke is 100 kg. The drag coefficient for the fully open parachute is C_{D} = 1.4 . Neglecting acceleration and considering a linear change of air density with altitude, estimate Luke's fall time between altitudes of 3000 m and 2000 m. For the density of air at these two altitudes, assume pair (3000m) = 1.0 kg/m³ and pair (2000m) = 1.1 kg/m³.
A bird moving in air or a fish moving in water experiences a force opposite to its direction of motion. Do you expect any change in the magnitude of this force? (a) If the fluid is heated and temperature is increased by to T0+10°K. (b) If the fluid is cooled down and its temperature is reduced to T0-10°K. Clearly mention your assumptions (if there is any) and justify your answer for each case.
Discuss and comment on the effect of drag polar for Re 5003352.
A propeller-driven aircraft has an in-flight weight of 4,105 lb (equivalent to a mass of 1,862 kg) and is cruising at a true airspeed of 120 kts. The lift-to-drag ratio of the aircraft is 8.2. If the propeller efficiency, ηp, is 0.8, then how much brake power is required for flight? Work through this problem in both USC and SI units.
B2 is flying at an altitude of 43,000 ft and a speed of 400 KTAS under standard atmospheric conditions. If the average aerodynamic chord is 39,6 ft, calculate the Reynolds number and the average % aerodynamic chord present on the wing
Consider the boundary layer flow = 1 - (1 − 2)¹5, 0
A block, as shown below, is sliding on a thin horizontal layer of water (u = 1.68 x 103 kg/m.s) between ice and the block with a speed of 13 m/s. The thickness of the water layer is 3.32 x 10-5 m. Given the following dimensions of the block, what is the force (F) required to maintain this movement? A = 9 cm B = 9 cm C= 8 cm B 2.96 N 5.33 N 4.14 N 4.74 N
2.4 A 2650-lb car is traveling at sea level at a constant speed. Its engine is running at 4500 rev/min and is producing 175 ft-lb of torque. It has a drivetrain efficiency of 90%, a drive axle slippage of 2%, 15- inch-radius wheels, and an overall gear reduction ratio of 3 to 1. If the car's frontal area is 21.5 ft², what is its drag coefficient?
Help me please
An aircraft has the drag polar, C_d=0.015+0.05C_l^2 For a lift coefficient of 0.5, find the value of the drag coefficient and lift drag ratio? I am asking It For Second Time. Please Read the Question Carefully.