{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ef152-lec-2-5 - Module 2 Lecture 5 Review What condition(s...

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

View Full Document Right Arrow Icon
EF 152 Spring, 2009 Lecture 2-5 1 Module 2, Lecture 5: Review What condition(s) are necessary for rotational equilibrium? A. Σ F = 0 B. Σ τ = 0 C. Σ F = 0 and Σ τ = 0 A nonzero net torque will: A. create a change in ω B. maintain a constant ω C. cause linear acceleration D. maintain constant angular momentum A heavy seesaw is out of balance. A lightweight girl sits on the end that is tilted downwards. A heavy boy sits on the other end and the seesaw now balances. If the boy and girl move forward so that they are one-half their original distance from the pivot point, what will happen to the seesaw? A. the side the boy is sitting on will tilt downward B. the side the girl is sitting on will tilt downward C. nothing, the seesaw will remain balanced D. more information (masses and distances) are needed EF 152 Spring, 2009 Lecture 2-5 2 A force is applied to the end of a 2-m long uniform board weighing 50 N in order to keep it in equilibrium. Determine the magnitude of the horizontal component of the wall force.
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the 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