problem10_26

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

• Homework Help
• PresidentHackerCaribou10582
• 1

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

10.26: a) The angular speed of the ball must decrease, and so the torque is provided by a friction force that acts up the hill. b) The friction force results in an angular acceleration, related by . fR I = α The equation of motion is cm, sin ma f β mg = - and the acceleration and angular acceleration are related by a = cm (note that positive acceleration is taken to be down the incline,
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: and relation between cm a and is correct for a friction force directed uphill). Combining, ( 29 , 5 7 1 sin 2 ma mR I ma β mg = + = ( 29 . sin 7 5 which from cm β g a = c) From either of the above relations between if f and , cm a , cos sin 7 2 5 2 s s cm β mg μ n μ β mg ma f = ≤ = = from which ( 29 . tan 7 2 s β ≥ μ...
View Full Document

• '
• NoProfessor
• Angular Acceleration, Friction Force, Physical quantities

{[ 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