10. Bar ABCD rests against a smooth surface at end D and is supported at end A with a ball-and-socket joint. There is a journal bearing at B that is properly aligned and that doesn't exert thrust. The force vector at C is Fc = {−100i + 350j - 280k} N. Select the correct equation for summing moments (in N m) about the y-axis. Unknown support reactions are assumed to be in the positive direction. a) Ax (0.5) - Az (0.5) - (100) (0.25) - (280) (0.4) = 0 b) Bx(0.2) - B₂(0.2) - (350) (0.25) + Dx (0.4) = 0 c) -Ay(0.5) - (100) (0.25) - (350) (0.25) + D (0.5) = 0 d) -B₂(0.25) - (100) (0.4) + (280) (0.25) + Dx (0.4) = 0 e) None of the above. X N A F C D 400 mm 300 mm/200 mm, B 250 mm y

10. Bar ABCD rests against a smooth surface at end D and is supported at end A with a ball-and-socket joint. There is a journal bearing at B that is properly aligned and that doesn't exert thrust. The force vector at C is Fc = {−100i + 350j - 280k} N. Select the correct equation for summing moments (in N m) about the y-axis. Unknown support reactions are assumed to be in the positive direction. a) Ax (0.5) - Az (0.5) - (100) (0.25) - (280) (0.4) = 0 b) Bx(0.2) - B₂(0.2) - (350) (0.25) + Dx (0.4) = 0 c) -Ay(0.5) - (100) (0.25) - (350) (0.25) + D (0.5) = 0 d) -B₂(0.25) - (100) (0.4) + (280) (0.25) + Dx (0.4) = 0 e) None of the above. X N A F C D 400 mm 300 mm/200 mm, B 250 mm y

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter4: Shear Forces And Bending Moments

Section: Chapter Questions

Problem 4.3.25P: Frame ABC has a moment release just left of joint B. Find axial force N, shear force V, and moment M...

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