equilibrium by devashish pahadi. index o definition of equilibrium o conditions for equilibrium o...
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Equilibrium
By Devashish Pahadi
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IndexODefinition of Equilibrium OConditions for Equilibrium OPrinciple of Moments OCouple
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What is Equilibrium?O Equilibrium is defined as the state of a body
when it is at rest or in a non-accelerated motion when all the resultant force acting on it are zero and also when the sum of all torques about an axis are zero.
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Conditions for Equilibrium
O The resultant forces acting on a body must be equal to zero.
O The resultant moment of forces acting on a body, in all points must be zero.
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Principles of Moments
O When a body is in equilibrium, the sum of all anticlockwise moments of any points must be the same as the sum of all clockwise moments of the point.
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CoupleO When two parallel forces
which are equal and opposite are not acting on the same line, a couple is formed.
O The moment of couple is equal to the product of either force and the perpendicular distance between the line of action of both the forces.
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BibliographyO http
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O http://thecrackeddoor.com/Main/wp-content/uploads/2013/01/balance.jpg
O http://herrick.bol.ucla.edu/GK12/Lessons/Week2/images/see-saw.pngO http://herrick.bol.ucla.edu/GK12/Lessons/Week2/images/see-saw.pngO http://cnx.org/resources/15f4e2ea18e681b7b82cd75574bcfd4b/
Figure_10_01_01a.jpgO http://cnx.org/resources/9fc2dfd54e43bcc9c78e861e2910c644/
Figure_10_02_01a.jpgO http://astarmathsandphysics.com/a-level-physics-notes/forces-and-moti
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O http://ap-physics.david-s.org/1-5-c-conditions-equilibrium/