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If a system of coplanar force acting o...

If a system of coplanar force acting on a rigid body is represented in magnitude , direction and sence by the sides of a polygon taken in order , then the system is equivalent to

A

a single non - zero force

B

a zero force

C

a couple whose moment is equal to the area of the polygon

D

a couple whose moment is twice the area of the polygon

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The correct Answer is:
D
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