Concept explainers
To find: the area wiped by the wiper blade.
Answer to Problem 70E
Explanation of Solution
Given:
A car’s rear windshield wiper rotates
Concept Used:
Area of sector of circle:
For a circle of radius r , the area A of a sector of the circle with central angle
First convert the central angle from degree measure to radian measure.
The total length of the wiper mechanism is 25 inches.
Thus, the area covered by the whole wiper mechanism is,
The length of the wiper blade is 14 inches.
Thus the length that is not wiping is:
Thus, the area that is not being wiped is,
Then, the area being wiped is,
Chapter 4 Solutions
EBK PRECALCULUS W/LIMITS
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning