Equilibrium

• If something is at equilibrium, you might see phrases like:

  • static
  • at rest
  • on the point of slipping
  • constant speed
• Equilibrium means the forces are balanced
• Equilibrium means the left force is equal to the right force and the up force is equal to the down force
• Is the vector shown in equilibrium?

  Yes

  
  

  How do you know that answer is correct?

  Ends where it begins

  
• If you add vectors together and they equal zero, it is in equilibrium