Question

what is couple of movement​

Answer 1

Explanation:

A couple is a pair of forces, equal in magnitude, oppositely directed, and displaced by perpendicular distance or moment. ... This is called a "simple couple".

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Answer 2

Answer:

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AB is the bar which is pivoted at a point O. At the ends A and B,two equal and opposite forces,each of magnitude F,are applied.

The perpendicular distance between 2 forces is:-

AB(=d)---->called couple arm.

The 2 force can produce translation motion as their resultant sum is 0,but each force is capable of producing a turning effect on the bar in the same direction.Thus the 2 force together form a couple which rotates the bar about the point O.

Movement of force F at end A

=F*OA

Movement of force F at end B

=F*OB

The total moment of couple

=F*(OA+OB)

=F*AB

=F*d

Thus,

Movement of couple = Either force*Perpendicular distance between the two forces.

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