Lecture 21

• Momentum
  
• Outline
  
• Projectile Motion
  
• Central Forces
  
• Non-Conservative Forces
  
• Examples
  
• Momentum
  
• Linear Momentum
  
• Newton’s 2nd Law
  
• Conservation of Momentum
  
• Conservation of Momentum
  
• Example
  
• Systems of Many Things
  
• Impulses
  
• Example
  
• Definition of Collisions
  
• Types of collisions
  
• Def’n of Elastic Collisions
  
• Elastic Collisions
  
• Inelastic Collisions
  
• Examples
  
• Explosions
  
• Center of Mass

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