Asked by ALLISON
The blade of a windshield wiper moves through an angle of 90.0° in 0.49 s. The tip of the blade moves on the arc of a circle that has a radius of 0.6 m.
What is the magnitude of the centripetal acceleration of the tip of the blade?
What is the magnitude of the centripetal acceleration of the tip of the blade?
Answers
Answered by
Brittany
90 degrees of a circle is 1/4 the Circumference. Therefore it takes 0.49s to travel 1/4 of the way. Multiply .49 by 4 to receive the total amount of time it takes to make one revolution. To find velocity, find the circumference (2*r*pi). Divide the circumference by the time to get the velocity. The Centripetal Acceleration is (v^2/r).
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