Section 7 of 21

Statics

Forces, moments, centroids, moments of inertia, and friction

What the section holds

Short and dense. Force and resultant in two dimensions, resolution of forces, moments and couples, systems of forces, centroids of masses and areas and lengths and volumes, moments of inertia, friction including belt friction and screw threads, statically determinate trusses, and concurrent force systems.

Why it matters for your exam

Statics is examined on the Civil, Mechanical, Industrial and Other Disciplines specifications, and its centroid and moment of inertia tables are reached constantly from the mechanics of materials and structural sections.

How to navigate it

Almost the whole section fits in seven pages, so once you are in it you can find anything by eye. The valuable habit is going straight here for a centroid or an area moment of inertia rather than searching the whole book.

Search terms that land here

centroid | moment of inertia | friction | truss | couple

Subsections, in handbook order

These are the headings the handbook itself uses. The page number beside each is where it begins.

  • Force (Two Dimensions)p94
  • Moments (Couples)p94
  • Resolution of a Forcep94
  • Resultant (Two Dimensions)p94
  • Systems of Forcesp94
  • Centroids of Masses, Areas, Lengths, and Volumesp95
  • Moment of Inertiap95
  • Frictionp96
  • Belt Frictionp97
  • Concurrent Forcesp97
  • Screw Threadp97
  • Statically Determinate Trussp97

Disciplines that use this section

Practise finding it

21 drill items in the corpus have this section as their answer.

Start a round

Page numbers here are read from handbook version 10.5 (seventh printing, April 2025), which runs to 502 pages. NCEES revises the handbook and page numbers move with it, which is why the drill asks which section a topic lives in rather than which page. Check the version of your own copy, downloaded free from NCEES.