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Mathematics 7 Online
OpenStudy (anonymous):

The rear windshield wiper moves through an angle of (3pi)/4 radians on 0.9 seconds. The wiper is 14 inches long and its bottom end is 9 inches from the pivot point. a)find the approximate distance traveled by points on the top and the bottom end of the wiper in one sweep of the wiper. b) Find the approximate linear speeds in inches per second of these two points. Show work.

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