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The axis vector in the calculation of the moment along the axis of rotation is the axis which is collinear with the force vector.

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The axis vector in the calculation of the moment along the axis of rotation is the axis which is collinear with the force vector.

(a) True

(b) False

I got this question in final exam.

This interesting question is from Moment of a Force on a Specified Axis in division Force System Resultants of Engineering Mechanics

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Right answer is (b) False

To explain I would say: The axis of the rotation cannot be collinear with the force vector. If it does so then the rotation of body is not possible. That is the moment of the force is zero. Which means no rotation is given by the force along the axis of rotation of the body.

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