Index for
Chapter 1
Equilibrium

1. What are Forces?

2. Our First Forces

• weight
• newton
• normal force
• tension
• Weight ($W$) measured in N
• Normal Force ($N$) measured in N
• Tension ($T$) measured in N

3. Static Equilibrium

• static equilibrium

4. Our First Physics Problem

5. Underdetermined

• mega
• unknowns
• We need two equations to solve for two unknowns,
  three equations to solve for three unknowns, and so forth.

6. The Second Dimension

• Horizontal and vertical forces are independent
  of each other, and balance separately.

7. Static Friction

• force diagram
• static friction
• Static Friction ($S$) measured in N

8. Contact Forces

• noncontact
• contact forces

9. Adjustable vs Fixed Forces

• fixed force
• adjustable forces
• Weight ($W$) measured in N
• $W=mg$, where $g=9.8\mathrm{N}/\mathrm{kg}$

10. Mass vs Weight

• mass
• weight
• Mass ($m$) measured in kg

11. Adjustable Limits

12. The Breaking of Static Friction

• coefficient of static friction
• Coefficient of static friction (${\mu }_S$) no units
• $S\le {\mu }_{S}N$

13. Torque

• torque
• lever arm vector
• newton-meters
• Torque ($\tau$) measured in N m
• $\tau =rF\sin \theta$

14. Torque and Equilibrium

15. Balancing Act

16. PS: Assessment Objectives

17. PS: Drawing Force Diagrams

18. PS: Force Tables

• force table

19. PS: Solving Force Problems

20. PS: Changing Between Mass and Weight

21. PS: A Block on a Ramp

• inclined plane

22. PS: Slipping Problems

23. PS: Torque Problems