problem09_19

University Physics with Modern Physics with Mastering Physics (11th Edition)

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
9.19: a) Before the circuit breaker trips, the angle through which the wheel turned was 108 2 s) (2.00 ) s rad (30.0 s) (2.00 ) s rad 0 . 24 ( 2 2 = + rad, so the total angle is rad. 540 rad 432 rad 108 = + b) The angular velocity when the circuit breaker trips is ( 29 ( 29 ( 29 s, rad 84 s 00 . 2 s rad 0 . 30 s rad 0 . 24 2 = + so the average angular velocity while the wheel is slowing is s, rad 0 . 42 and the time to slow to a stop is
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: s, 3 . 10 s rad 42.0 rad 432 = so the time when the wheel stops is s 3 . 12 . c) Of the many ways to find the angular acceleration, the most direct is to use the intermediate calculation of part (b) to find that while slowing down = ∆ z ω s rad 84-so . s rad 17 . 8 2 s 3 . 10 s rad 84-= = α-z...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    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.

    Student Picture

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

  • Left Quote Icon

    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.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    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.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern