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Mechanisms (Classification (Transmitting motion (Linear, Rotaring),…

- - - - N1 · Z1 = N2 · Z2
- - - - F · d = R · r
    - - Class 1: The fulcrum is between the effort applied and the resistance
      - Class 2: The resistance is between the fulcrum and the effort applied
      - Class 3: The effort applied is between the fulcrum and the resistance
  - - - Fixed Pulley
        
        A fixed pulley is balanced when the effort F is equal to the resistance of the load, R. F = R
      - Movable Pulley
        
        A moveable pulley is balanced when it satisfies this equation: F = R/2
      - Compound Pulley
        
        This is a system of fixed and moveable pulleys, often called block and tackle. If we use more pulleys, the system becomes more complex, but less effort is needed to move the load.