Basic mechanical terms

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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

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