2-LINEAR TRANSMISSION OF MOTION

1: Levers: A lever is a bar that turns around a point called fulcrum.
Each force produces a specific torque:
Torque: Force x  Distance.
Law of the Lever:
F multiplied by d: R multiplied by r.
F: Force or the effort that we use.
D: Distance from the fulcrum.
R: Resistance or load that we want to move.
r: distance from the fulcrum.