Forces & Equilibrium Study Guide

1. The meaning of the following terms:
   • parallel force, concurrent force, resultant, equilibrant, and coupled forces
   • translational and rotational equilibrium
   • friction and the coefficient of friction
   • vector resolution
   • normal and parallel components of weight
   • center of gravity
2. you should also know:
   • the properties of forces and friction
   • the conditions for equilibrium
   • how to find the torque from a force couple
3. and be able to solve problems involving the following:
   • resolving vectors into right angle components
   • law of sines and cosines
   • translational equilibrium
   • friction and equilibrium
   • friction and acceleration
   • rotational equilibrium and torques
   • rotational and translational equilibrium combined