In this video you will see how to solve how to solve Problem no.9 on Equilibrium in Engineering mechanics
Definition of Equilibrium in engineering mechanics
The normal force N is equal, opposite, and colliniear to the gravitational force mg so the net force and moment is zero. Consequently, the object is in a state of static mechanical equilibrium. In classical mechanics, a particle is in mechanical equilibrium if the net force on that particle is zero 1
i) Resultant acts as a disturbing force.
ii) Resultant causes unbalance in the system.
i)It is the Force which cancel the effect of resultant force.
ii)This force makes the system stable.
iii) Value of equlibrant force will be same as resultant.
iv)Equilibrant force is a force which brings equilibrium state. It is considered to be the equal and opposite of the resultant force. Equilibrant force is the force, which keeps any object motionless and acts on virtually every object in the world that is not moving.
Magnitude of force
A force is a vector quantity. As learned in an earlier unit, a vector quantity is a quantity that has both magnitude and direction. To fully describe the force acting upon an object, you must describe both the magnitude (size or numerical value) and the direction.
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