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4)) 16% D Mon 5:10 PM a Chrome File Edit View History Bookmarks People Window Help A Home-Myusu fi Dwww.webassign.net/web/Student/Assignment-Responses/submit2dep=1 1594592 :. Apps Bookmarks A usu canvas chem sapling e chegg B Bodybuilding.com a S Austin x Ellucian Degree Works - Us x Homework 8 x Chegg Study | Guided Sol xSean White Stats, News, V x ongkick- Concert A preReq med school S slcc login USU canvas slcc canvas » Other Bookmarks ew 5.-11 points CJ8 9.FC.008. My Notes The drawing shows a top view of a square box lying on a frictionless floor. Three forces, which are drawn to scale, act on the box. Consider an angular acceleration with respect to an axis through the center of the box (perpendicular to the screen). Which one of the following statements is correct? Go O It is not possible to determine whether the box will have a translational or an angular acceleration O The box will have an angular acceleration, but not a translational acceleration O The box will have both a translational and an angular acceleration O The box will have neither a translational nor an angular acceleration O The box will have a translational acceleration, but not an angular acceleration Read the eBook Section 9.2 Rigid Objects in Equilibrium 6. -1 points CJ8 9.P.003 My Notes You are installing a new spark plug in your car, and the manual specifies that it be tightened to a torque that has a magnitude of 29 N·m. Using the data in the drawing, determine the magnitude F of the force that you must exert on the wrench 26 J.

Explanation / Answer

B)

The horizontal component of F3 is balanced by F1 , and the vertical component of F3 is balanced by F2 . Thus, the net force and, hence, the translational acceleration of the box, is zero. For an axis of rotation at the center of the box and perpendicular to the screen, the forces F2 and F3 produce no torque, because their lines of action pass through the axis. The force F1 does produce a torque about the axis, so the net torque is not zero and the box will have an angular acceleration.

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