Question

What do you understand by the term couple? State its effect on a body. Give two examples in our daily life where couple is applied to turn a body.

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Answer

Two equal and opposite parallel forces, not acting along the same line form a couple.

A couple is always needed to produced a rotation.

Two examples in our daily life where we use couple are:

  1. Turning a water tap.
  2. Tightening the cap of a bottle.

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