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Principle of virtual work done is having condition___________

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Principle of virtual work done is having condition___________

(a) δU = 0

(b) δU = δF

(c) δU = δM

(d) δU = δD

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The correct option is (a) δU = 0

The explanation is: The virtual work done is working on the equation: δU = 0. This means that the body must be in the equilibrium and the network done must be zero. Thus the unknown forces are being determined by the same technique.

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