EQUILIBRIUM OF A LEANING LADDER _ Physics Academy Online

When engineers construct buildings and flyovers and designers design small items like scissors, forks, ect, they keep two things in mind. First, the conditions under which the bodies, presumed to be rigid, remain in mechanical equilibrium under the action of external forces and their torques. And second, the conditions under which the bodies continue to remain rigid under the said forces and torques.The branch of physics which studies the condition of equilibrium of a body at rest is called statics. All bodies which attain equilibrium under a set of forces are deformed to a certain extent. However, if these forces are comparatively small, the deformation is also small and the conditions of static equilibrium remain unaffected. At this point, it will be tacitly assumed that the bodies under investigation remain perfectly rigid when a set of forces and torques act on them. You will enjoy the topic while learning through the video lectures on Stability of Static Equilibrium, Various Cases of Static Equilibrium In Two Dimensions, Equilibrium of A Leaning Ladder, Centre of Gravity of a Rigid Body and many more.

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