L10 Newton's 3rd Law



  1. Finish Dynamics, 1-D motion, Knight viewgraphs from 6-72 (Friction)
  2. Homework Question Knight 6.25
  3. Homework Question Knight 6.21

Key Points

  1. New Idea: Interaction Diagrams
  2. Newton's 3rd Law
    • every force occurs as one member of an action/reaction pair
    • two members of an action/reaction pair
      • act on different objects
      • are equal in magnitude
      • are opposite in direction.

Knight Chapter 7 Newtons 3rd Law Slides

Key Skill Practice

  1. Draw a motion diagram for B & G combined
  2. Draw an interaction diagram for B and G
  3. Draw FBD diagrams for B and G separately

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