The tip of a windshield wiper travels a distance of 31 inches in one 90 degrees revolution.?
What is the length of the windshield wiper to the nearest inch?
What is the length of the windshield wiper to the nearest inch?
Jeff Aaron
Favorite Answer
Circumference of entire circle: 31 * (360/90) = 124
Divide by 2*pi to get radius: 62/pi =~ 19.735, round off to 20 inches
NOTE: This is distance from the centre of the pivot point to the tip of the wiper, NOT from one end of the wiper blade to the other.
Krishnamurthy
2 pi r = 124 inches, r ≈ 19.735 inches
The length of the windshield wiper:
20 inches (rounded to the nearest inch)