SOLUTION: A point on the rim of a wheel has a linear speed of 18 cm/s. If the radius of the wheel is 20 cm, what is the angular speed of the wheel in radians per second?

Question 615537: A point on the rim of a wheel has a linear speed of 18 cm/s. If the radius of the wheel is 20 cm, what is the angular speed of the wheel in radians per second?
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
A point on the rim of a wheel has a linear speed of 18 cm/s. If the radius of the wheel is 20 cm, what is the angular speed of the wheel in radians per second?
**
cm=centimeter, rev=revoltion, r=radius
18cm/sec *rev/2πr*2π radian/rev
cm, rev, 2π cancel out, leaving
18/r radians/sec
angular speed of wheel=18/20=9/10 radians/sec
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