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D’Alembert’s Principle

 

D’Alembert’s Principle

 

What is this principle?

This principle states that the summation of external forces applied to a rigid body and the inertia force is equal to zero.

ƩFexternal  + Finertia = 0

This principle is used for analysing the dynamic problem which can reduce it into a static equilibrium problem.

   What is Inertia force ?

 Inertial force is defined as the force which is in the opposite direction of the accelerating force and is equal to the product of the accelerating force and the mass of the body.

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