Equilibrium Problems 1-20-17
Equilibrium problems are what statics are about. N1 says bodies in rest
stay at rest, and bodies in motion stay in motion unless acted by an
outside force. Theresultantof the forces should b0. This means the x
and y components are 0. Inequilibrium, the body remains at rest.
We can use the conditions of equilibrium to solve for unknowns (forces) in
one of two ways
Place vectors tail to tip. In statics, the tails to tips should end at the
starting point. This is only useful if there's just 3 forces. For more than 3,
use the algebraic method.