Wednesday 17 October 2018

Couple

Couple:


When two equal and opposite forces act on a body but have different lines of action, they are said to form a couple.

When a couple acts on a body, the body is in Translational Equilibrium but not in Rotational Equilibrium, thus a couple Rotates
 a body.


Everyday Examples of couple:

  • A tap is opened or closed when our fingers apply a couple on it.
  • The lid of a bottle is also opened and closed when our fingers apply a couple on it.
  • A driver applies a couple with his hands on a steering wheel to turn the wheels of  the vehicles.

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