The Warren truss is used to support a staircase. Determine the force in members CE, ED, and DF, and state whether the members are in tension or compression. Assume all joints are pinned.

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pg6-5a

The Warren truss is used to support a staircase. Determine the force in members CE, ED, and DF, and state whether the members are in tension or compression. Assume all joints are pinned.
[A]. ED = 3.60 kN T, DF = 1.70 kN C, CE = 6.22 kN C
[B]. ED = 2.00 kN C, DF = 2.26 kN C, CE = 2.26 kN T
[C]. ED = 0.800 kN C, DF = 1.131 kN T, CE = 2.83 kN C
[D]. ED = 0.400 kN C, DF = 2.26 kN T, CE = 4.53 kN C

Answer: Option D

Explanation:

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