Important terms:

• Gravity
• Weight
• Components
• Unit Vector
• Equilibrium (Static)
• Resultant Force
• Tangent
• Transmissibility Principle
• Moment of a Force
• Moment or Moment Arm
• Torque
• Lever and Fulcrum
• Class of a Lever
• Mechanical Advantage
• Speed Advantage
• Vector Product
• Free-body Diagram (FBD)

Link to glossary

• Universal Law of Gravitation (3.1, pp.27-29)
• Resolution of Forces into Components (3.2, pp.30-31)
• Addition of forces by Summing Components (3.2, p.32)
• Newton's First Law (3.3, pp.34-36)
• Equilibrium of a Particle (3.3, pp.34)
• Resultant Force (3.3, pp.35-36)
• Transmissibilty of Forces on Rigid Bodies (3.3, pp.37-38, Figure 3.8)
• Moment of a Force (3.3, pp.38-41)
• Leverage Systems (3.4, pp.44-46)
• Classes of Levers (3.4, pp.46-48, Figure 3.20)
• Mechanical versus Speed Advantage (3.4, p.49)
• Laws of Statics (3.5, pp.50-57)
• Moment of force as Vector Product (3.5, pp.48-50)
• Free-body Diagram (3.5, pp.51-53, Figure 3.30)
• Steps for Solving Mechanics Problems (3.5, p.55)