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

Q1.2
The drag polar for the ASW 27B high performance sailplane is: CD = 0.01 +0.02CL2. What is its maximum lift-to-drag (L/D) ratio? 18 25 35 70
Consider the boundary layer flow = 1 - (1 − 2)¹5, 0
Q4) Define the boundary layer, then find the thickness of boundary layer, shear stress, drag force and coefficiet of drag in terms of Re for the velocity profile of laminar boundary layer u/U=4(y/8)-6(y/8)5. Calcate the boundary layer thickness and drag force if the air flows over a sharp edged flat plate 1m long and 0.5m wide at a velocity 0.9m/s, the air density 1.23 kg/m³ and the kinematic viscosity is 1.46*10-5 m/s².
A portion of ship’s hull can be idealized as a flat plate, 100ft long. If the ship’s velocity is 10 ft/s and the properties of the water it is moving through are ρ=62.4lbm/ft³ and µ=3.0lbm/hr.ft, calculate the maximum boundary layer thickness.
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.
A stationary object in a flow of speed 27 m/s produces a drag force of 13 N. The flow speed is then changed to 25 m/s. What will be the drag force if the Drag Coefficient and density are assumed constant? Give your answer in Newtons to 2 decimal places.
B) for the velocity profiles given below, state whether the boundary layer has separated or on the verge of separation or will remain attached ( i) u/U=2(y/8) -(y/8)² ii) u/U=-2(y/8) +0.5(y/8)³ iii) u/U-1.5(y/8) +0.5(y/8)³ Q3: Find the displacement, momentum thickness and energy thickness for the velocity distribution in the boundary layer: F u/U=0.5(y/8) + 1.5(y/8)³ Q4: A) Find the velocity distribution and expression of the maximum velocity and shear stress for a flow between two stationary plates. C B) A laminar flow of oil between two horizontal fixed parallel plates with a maximum velocity 2 m/s and 100mm apart. Canulate the pressure gradient and shear stress. Take µ-2.4525 s/m².