L9 Dynamics I: 1D Motion

Finish Previous Lecture

1. Status of Students To Date (Marks)
2. Knight Chapter 5 Lecture Slides From Slide 58(103) OR Slide 71(104)
   

   Forces in 1D

3. Drawing Free Body Force Diagrams: From different student perspectives

Main Lecture

1. Equilibrium ( Δ v = 0 )
   • static v = 0
   • dynamic v ≠ f(t)
2. Connecting dynamics and kinematics

   free-body diagrams	motion diagrams

3. Friction (opposes motion)
   • f_s static (f_s < μ_s n )
   • f_k kinetic
   • f_r rolling
4. Chapter 6 Dynamics I: Lecture Slides To Slide 6-53