Ch 2 (Composition of Forces) B.Sc Mechanics Notes

Introduction to Mechanics (B.Sc.)

Chapter:02 (Composition of Forces)

In this chapter, we will study the following topics:

  • composition of forces
  • the composition of concurrent forces
  • geometrical method
  • three non-coplanar forces
  • system of forces
  • the foregoing theorem
  • the (lamda, mue) theorem
  • equilibrium of a particle
  • the polygon of forces
  • the triangle of forces
  • lamy’s theorem
  • moment of a force about a point
  • varignon’s theorem
  • couples
  • equivalent couples
  • composition of couple
  • conditions for the equilibrium of couples
  • a force and a couple
  • the area of a polygon
  • reduction of a system of coplanar forces to one force and one couple
  • reduction of a system of parallel forces
  • two parallel forces
  • conditions of equilibrium of a coplanar force system
  • other forms of conditions of equilibrium
  • perpendicular distances
  • regular hexagon

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