Newton's 3 Laws of Motion

• Law of Inertia - an object at rest will remain at rest and the object in constant motion will remain in motion
• Law of Acceleration  - the influence of Force and Mass, the direction if the net force & acceleration are the same while acceleration & mass are inversely related
• Law of Interaction - Action and Reaction Pair of Force, every action will have an equal or opposite reaction
• Law of Interaction


  Every action there is an equal or opposite reaction
• Magic triangle of Force

  • mass
  • Force
  • acceleration
• Solving for a force problem

  1. Given (G)

  2. Required (R)

  3. Equation (E)

  4. Solution (S)

  5. Answer (A)
• • f = N
  • m = kg
  • a = m/s²
• A = a=f÷m
• F = m•a
• M = f÷a