A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called (A) Pascal's law (B) (C) D-Alembert's principle (D) None of these

A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary
inertia force of the same magnitude as that of the accelerating force but in the opposite direction.
This statement is called
(A) Pascal's law
(B)
(C) D-Alembert's principle
(D) None of these
by

1 Answer

Answer :

Answer: Option C
by

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According to D' Alembert's principle, m (d 2 x/ dt 2 ) + c (dx/dt) + Kx =0 is the differential equation for damped free vibrations having single degree of freedom. What will be the solution to this differential equation if the system is critically damped? A. x = (A + Bt) e – ωt B. x = X e – ξωt (sin ω d t + Φ) C. x = (A – Bt) e – ωt D. x = X e – ξωt (cos ω d t + Φ

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