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The force and the couple can’t be simplified together as one is the cause and the other is the effect in free body diagrams.

The force and the couple can’t be simplified together as one is the cause and the other is the effect in free body diagrams. Correct Answer The statement is wrong and the reason given is also wrong

Both of them are vector quantities. And both of them can be easily simplified. If taken in the vector form then the task is even easier. Thus it is not necessary for the force or the couple to be vector only, even if the magnitude is taken, the simplification is done in the 2D.

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