Basic mechanical terms
Define force The most commonly used type of input in mechanical system is force and it is the reason for moment, torque, stress to exist. When a force acts over a body; it gets imbalanced ; and moves in the direction of applied force. Define Work Work is the output made from the input; force. Mathematically Work = Force x Distance (N-m or Joule) Define torque Torque is described as force acting along a distance (Perpendicular distance). Torque creates twisting and makes rotation. Torque = Force × distance Define friction When a body moves or tends to move over other body, a force appears between the objects of interest. This force is called friction. Friction acts opposite to the direction of motion. Mathematically F = µ X R F- Friction; µ- Coefficient of friction; R- Normal force acting between surfaces Define power Power = (Force x Distance) / time ((N-m)/s) Or Watts