Question

Define moment of couple. Write it si unit

Answer 1

THE PRODUCT OF EITHER FORCE AND PERPENDICULAR DISTANCE BETWEEN THEM IS KNOWN AS MOMENT OF COUPLE
. THE SI UNIT OF MOMENT OF COUPLE IS NEWTON PER METRE[N/m].

Answer 2

$\Large \text{Moment\: Of\: Couple :-}$

✿ It is the rotating ability of a couple .

✿ It is defined as the product of one of the force forming the couple and arm of the couple .

✿ That is, Moment of a couple =Magnitude either force × Arm of the couple .

✿ SI unit of moment of the couple is Newton metre or Nm.

✿ When a Body rotates movement of the couple lies along the axis of rotation .

✿ To balance a couple another equal but opposite couple is required in the same plane .

✿ Moment of the couple is positive for anti clockwise rotation of body .

✿ Moment of the couple is negative for clockwise rotation of body .