Question

A windshield wiper that is 13 inches long (rubber part (blade) and metal part (arm)) rotates...

A windshield wiper that is 13 inches long (rubber part (blade) and metal part (arm)) rotates at 75° .

a. If the blade is 9 inches long, what is the area cleared on the window, by the blade?



b. Suppose a bug was dead at the end of the blade (furthest from arm), how far was the dead bug dragged by the blade in one full wipe (up and back down)?


please help.

Science   Advanced-Physics   
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