Question: Consider the force system in equilibrium shown in the image below. Determine the following: a . Draw the FBD ( Free Body Diagram ) .

Consider the force system in equilibrium shown in the image below. Determine the following:
a. Draw the FBD (Free Body Diagram).
b. Determine the spring stiffness in spring AB.
Given:
KAD=25lbft
Lo (AD)= undeformed length of segment AD=2ft
L(AD)= deformed length of segment AD=4ft
SAB=3ft
Consider the force system in equilibrium shown in

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