problem10_62

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

  • Homework Help
  • PresidentHackerCaribou10582
  • 1

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

10.62: At the point of contact, the wall exerts a friction force f directed downward and a normal force n directed to the right. This is a situation where the net force on the roll is zero, but the net torque is not zero , so balancing torques would not be correct. Balancing vertical forces, , cos rod F w f F + + = θ and balacing horizontal forces , With . sin k rod n μ f n θ F = = these equations become , cos k rod w F n μ θ F + + = . sin rod n θ F = (a) Eliminating n and solving for rod F gives N. 266 30 sin ) 25 . 0 ( 30 cos N) 0 . 40 ( ) m/s (9.80 kg) 0 . 16 ( sin
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2 k rod = °-° + =-+ = θ μ θ F ω F b) With respect to the center of the roll, the rod and the normal force exert zero torque. The magnitude of the net torque is n μ f R f F k and , ) ( =-may be found insertion of the value found for rod F into either of the above relations; i.e., N. 2 . 33 sin rod k = = θ F μ f Then, . rad/s 71 . 4 ) m kg (0.260 m) 10 N)(18.0 54 . 31 N . 40 ( 2 2 2 = ⋅ ×-= =-I τ α...
View Full Document

  • '
  • NoProfessor
  • Force, 2 m, 9.80 m/s, 0.260 kg, 4.71 rad, 16.0 kg

{[ 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