For an airplane in flight, the average speed of the air relative to the plane is 309 m/s below the wings and 339 m/s above the wings (see the figure below). The bottom of each wing has a surface area of 30.1 m2. Calculate the lift, which is the net upward force of air on the plane.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
icon
Concept explainers
Topic Video
Question

For an airplane in flight, the average speed of the air relative to the plane is 309 m/s below the wings and 339 m/s above the wings (see the figure below). The bottom of each wing has a surface area of 30.1 m2. Calculate the lift, which is the net upward force of air on the plane.

The image displays a diagram of airflow over an airfoil, which is a cross-sectional shape of a wing or blade (as in a turbine) designed to generate lift when moved through air. 

### Diagram Explanation:

- **Streamlines**: The blue lines represent streamlines of airflow. They illustrate the path followed by air molecules as they move across and around the airfoil.
  
- **Airfoil Shape**: The dark gray shape in the center is the airfoil. It's tilted at an angle, which is the angle of attack, enhancing its ability to generate lift.

- **Flow Characteristics**:
  - At the leading edge (the front part of the airfoil), the streamlines are closely spaced, indicating higher airspeed and lower pressure, which is crucial for lift generation.
  - The curvature of the streamlines over the top of the airfoil contrasts with the straighter path below. This demonstrates how airflow velocity differs on the upper and lower surfaces.
  - The streamlines converge again at the trailing edge (back part), indicating reconvergence of airflows, which is important for pressure balance and lift maintenance.

Understanding this airflow pattern is essential for aerodynamics and is fundamental in studying how aircraft wings and other lifting surfaces work to achieve flight.
Transcribed Image Text:The image displays a diagram of airflow over an airfoil, which is a cross-sectional shape of a wing or blade (as in a turbine) designed to generate lift when moved through air. ### Diagram Explanation: - **Streamlines**: The blue lines represent streamlines of airflow. They illustrate the path followed by air molecules as they move across and around the airfoil. - **Airfoil Shape**: The dark gray shape in the center is the airfoil. It's tilted at an angle, which is the angle of attack, enhancing its ability to generate lift. - **Flow Characteristics**: - At the leading edge (the front part of the airfoil), the streamlines are closely spaced, indicating higher airspeed and lower pressure, which is crucial for lift generation. - The curvature of the streamlines over the top of the airfoil contrasts with the straighter path below. This demonstrates how airflow velocity differs on the upper and lower surfaces. - The streamlines converge again at the trailing edge (back part), indicating reconvergence of airflows, which is important for pressure balance and lift maintenance. Understanding this airflow pattern is essential for aerodynamics and is fundamental in studying how aircraft wings and other lifting surfaces work to achieve flight.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Fluid Pressure
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON