truss is loaded as shown in the Figure. Assume AE = 10,000N. Which of the following most nearly gives the relative displacement between joints B and D id member BD is removed?                                  ( ans. 8.12 mm ) Which of the following most nearly gives the relative displacement between joints B and D due to two-unit loads acting on joints B and D towards each other?                                                                           ( ans. 1.02 mm ) Which of the following most nearly gives the axial force in member BD? ( ans. 5.61 N  )

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Bending Moment

In general, we can define the bending moment as the reaction induced when a certain amount of load or force is applied to an element which makes it bend.