Posted by **ALLISON** on Tuesday, October 5, 2010 at 8:02pm.

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?

- PHYSICS -
**Brittany**, Friday, February 24, 2012 at 12:13am
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).

## Answer This Question

## Related Questions

- physics - The blade of a windshield wiper moves through an angle of 90.0° in 0....
- physics - The blade of a windshield wiper moves through an angle of 90.0° in 0....
- PHYSICS - How do I solve this? The blade of a windshield wiper moves through an ...
- pprecalc - a windshield wiper on a a plymouth acclaim is 20 in. long and has a ...
- trig - A rear windshield wiper on a car has a total arm length of 10 inches and ...
- trig - A rear windshield wiper on a car has a total arm length of 10 inches and ...
- physics - The large blade of a helicopter is rotating in a horizontal circle. ...
- physics - The large blade of a helicopter is rotating in a horizontal circle. ...
- Physics - The large blade of a helicopter is rotating in a horizontal circle. ...
- physics - The large blade of a helicopter is rotating in a horizontal circle. ...

More Related Questions