Learning Goal:
A space truss is a stable three-dimensional structure that consists of
members joined at their ends. If the external loading is applied at the
joints, and the joints are ball-and-socket connections, the members of
a space truss may be treated as two-force members.
Figure
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Part B
As shown, a space truss is the frame for a building's awning. (Figure 2) Three ball-and-socket joints at A, B, and E support the frame. If a force of
$\vec{F} = \{110\hat{i} + 360\hat{j}\} N$ is applied at point D, what are the forces in each member? Indicate a tensile force as a positive value and a compressive force as a negative
value.
Express your answers numerically to three significant figures in newtons separated by commas.
$F_{DA}, F_{DC}, F_{DB}, F_{CA}, F_{CB}, F_{CE} =$
N
