The principle of virtual work can be applied to elastic system by considering the virtual work of (A) Internal forces only (B) External forces only (C) Internal as well as external forces (D) None of the above

The principle of virtual work can be applied to elastic system by considering the virtual work of
(A) Internal forces only
(B) External forces only
(C) Internal as well as external forces
(D) None of the above
by

1 Answer

Answer :

(C) Internal as well as external forces
by

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