Lecture 09 Calendar
Lecture 08: Equilibrium

PHYS 1750: SELECTED TOPICS in PHYSICS
LECTURE 09. Statics Applications and Elasticity

5.5. Applications and Problem Solving
1. Holding things
2. Scaffolding
3. Ladders
5.6. Simple Machines
Advantage: less force required. Disadvantage: less displacement.
1. Levers
2. (frictionless) Pulleys: tension constant on rope.
5.7. Biological Applications
5.8. Deformation of Solids
1. Stretching/squeezing: Young's modulus
ΔL/L = (F/A)/γ
2. Sideways shear: shear modulus
Δx/h = (F/A)/S
3. Volume change: bulk modulus
ΔV/V = (F/A)/B

Review Questions
Lecture 10: Work and Energy