To loosen the cap of a peanut butter jar requires a moment about the z axis of 50 in.-lb. If Fß has the x, y, and z direction cosines 6/11,-9/11, and 2/11, respectively, and the forces F₁ and FB are a couple, determine the magnitude of FB needed to loosen the cap. Z X 15° 1.8 in. FE B

To loosen the cap of a peanut butter jar requires a moment about the z axis of 50 in.-lb. If Fß has the x, y, and z direction cosines 6/11,-9/11, and 2/11, respectively, and the forces F₁ and FB are a couple, determine the magnitude of FB needed to loosen the cap. Z X 15° 1.8 in. FE B

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.

Question

To loosen the cap of a peanut butter jar requires a moment about the z axis of 50 in.-lb. If FB has the x, y, and z direction cosines
6/11,-9/11, and 2/11, respectively, and the forces FA and FB are a couple, determine the magnitude of FB needed to loosen the cap.
Z
X
A
15°
1.8 in.
Creamy
Peanut Butter
FB
FB = 18.93 lb

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