12. Depicted below is the side-view sketch of a breakfast bar/shelf that I built several years ago. The bar was 5-foot long and 24 inches wide. It was supported by a single strut (member) that was anchored to the wall at a distance of 30 inches below the shelf (shown a location C on the sketch). The strut was connected to the shelf at a location B which was 18 inches away from the wall. Of course, the bar top itself was also anchored to the wall at location A. All connections at locations A, B, and C are being modelled as frictionless pins in the sketch. Compute the X direction force at location A if I loaded 100 pounds of Groceries (G) on the shelf and the Center of the Gravity of the Groceries was located 4 inches inward of the right- hand edge of the bar. Ignore the thickness of the shelf and the strut. This is a Frame question because the shelf is a three-force member. Ax =

12. Depicted below is the side-view sketch of a breakfast bar/shelf that I built several years ago. The bar was 5-foot long and 24 inches wide. It was supported by a single strut (member) that was anchored to the wall at a distance of 30 inches below the shelf (shown a location C on the sketch). The strut was connected to the shelf at a location B which was 18 inches away from the wall. Of course, the bar top itself was also anchored to the wall at location A. All connections at locations A, B, and C are being modelled as frictionless pins in the sketch. Compute the X direction force at location A if I loaded 100 pounds of Groceries (G) on the shelf and the Center of the Gravity of the Groceries was located 4 inches inward of the right- hand edge of the bar. Ignore the thickness of the shelf and the strut. This is a Frame question because the shelf is a three-force member. Ax =

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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Question

12. Depicted below is the side-view sketch of a breakfast barishelf that I built several years
ago. The bar was 5-foot long and 24 inches wide. It was supported by a single strut
(member) that was anchored to the wall at a distance of 30 inches below the shelf
(shown a location C on the sketch). The strut was connected to the shelf at a location B
which was 18 inches away from the wall.
Of course, the bar top itself was also anchored to the wall at location A. All connections
at locations A, B, and C are being modelled as frictionless pins in the sketch. Compute
the X direction force at location A if I loaded 100 pounds of Groceries (G) on the shelf
and the Center of the Gravity of the Groceries was located 4 inches inward of the right-
hand edge of the bar. Ignore the thickness of the shelf and the strut.
This is a Frame question because the shelf is a three-force member.
Ax =
wall
244
4=100 Pounels
Shelf
3.

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