{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Example 9-1

# Example 9-1 - c unlike Parts a and b involves both a linear...

This preview shows pages 1–2. Sign up to view the full content.

A CD Player A compact disk rotates from rest to 500 rev/min in 5.5 s. ( a ) What is its angular acceleration,  assuming that it is constant? ( b ) How many revolutions does the disk make in 5.5 s? ( c ) How far  does a point on the rim 6.0 cm from the center of the disk travel during the 5.5 s it takes to get to  500 rev/min? PICTURE  Part ( a ) is analogous to the one-dimensional linear problem of finding the acceleration,  given the time and the final velocity. Part ( b ) is analogous to the one-dimensional linear problem  of finding the displacement, given the time and the final velocity. Part (

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: c ), unlike Parts ( a ) and ( b ), involves both a linear quantity (distance traveled) and an angular quantity (angular displacement). Thus, Part ( c ) is not analogous to a one-dimensional angular problem. SOLVE ( a ) 1. The angular acceleration is related to the initial and final angular velocities: Answer: 2. Solve for : Answer: ( b ) 1. The angular displacement is related to the time by Equation 9-6 : Answer: 2. Convert radians to revolutions: Answer: ( c ) The distance traveled is r times the angular displacement in radians: Answer:...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern