Force

Procedure: Similar triangles

  • Geometric triangles are similar to vector triangles

NCEE

1

1 Note-1

Procedure: Deformed Lever

  • Two balls balanced by three forces
  • Have a pair of internal forces (e.g., coulombic forces)
  • Another pair of forces crossed at one point, which is the fulcrum

NCEE

2 3 4

Procedure 3

Requirement: The resultant force of multiple forces is zero

If a force \( F \) is reversed, the resultant force after that is \( 2F \)