SOLUTION: The windshield wiper of a car is 18 inches long. If it takes 1 second to trace out 1/3 revolution, how fast is the tip of the wiper moving?
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Question 966306: The windshield wiper of a car is 18 inches long. If it takes 1 second to trace out 1/3 revolution, how fast is the tip of the wiper moving? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! The windshield wiper of a car is 18 inches long.
If it takes 1 second to trace out 1/3 revolution, how fast is the tip of the wiper moving?
:
Find the cicumference, like the 18" windshielf wiper made a complete revoluton
C = 113.1 inchec
Find 1/3 of a revolution = 37.7", the distance moved by the wiper in 1 sec
there
37.7 in/sec is the speed of the tip of the wiper
