A car’s rear windshield wiper rotates 125^(circ) The total length of the wiper mechanism is 25 inches and wipes the windshield over a distance of 14 inches. Find the area covered by the wiper.

Jerold 2021-02-18 Answered
A car’s rear windshield wiper rotates 125(circ) The total length of the wiper mechanism is 25 inches and wipes the windshield over a distance of 14 inches. Find the area covered by the wiper.
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Expert Answer

Aamina Herring
Answered 2021-02-19 Author has 85 answers

Given:
θ=125
r1=25 inches
r2=14 inches
r=r1r2=2514=11 inches
θ=125π/1802.1817 radians
1/2r2θ=1/21122.1817=131.993
1/2r(2/1θ)=1/22522.1817=681.781
681.781-131.993=549.788

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