Balanced & unbalanced

• Resolving Forces

  • This is called "resolving" a force 
  • Two force vectors can also be added together to find the resultant force
  • When two vectors are not at right angles, the resultant vector can be calculated using a scale drawing
• Equilibrium

  • A system is in equilibrium when all the forces are balanced. This means:
  • There is no resultant force
  • An object in equilibrium will therefore remain at rest, or at a constant velocity, and not rotate or move
• Forces in Equilibrium

  • When three forces act on a body in equilibrium, they can be added together to form a closed vector triangle
  • This indicates that the resultant force on the body is zero