A half-meter rod is pivoted at the center with two weights of 20 gf and 12 gf suspended at a perpendicular distance of 6 cm and 10 cm from the pivot respectively as shown alongside.
Which of the two forces acting on the rigid rod causes a clockwise moment?

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Solution

Given that a half-meter rod is pivoted at the center with two weights of 20 gf and 12 gf suspended at a perpendicular distance of 6 cm and 10 cm from the pivot respectively.
A moment of force is called a clockwise moment when the turning effect on the body is clockwise or negative.
Since the turning effect on the arm of the rigid rod that has 12 gf weight is clockwise, it causes the clockwise moment.
Thus the force that acts on the arm of the rigid rod that has 12 gf weight causes a clockwise moment.

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Q. Which of the two forces acting on the rigid rod causes clockwise moment?

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A half-meter rod is pivoted at the center with two weights of 20 gf and 12 gf suspended at a perpendicular distance of 6 cm and 10 cm from the pivot respectively as shown alongside. Which of the two forces acting on the rigid rod causes a clockwise moment?

A half-meter rod is pivoted at the center with two weights of 20 gf and 12 gf suspended at a perpendicular distance of 6 cm and 10 cm from the pivot respectively as shown alongside.
Which of the two forces acting on the rigid rod causes a clockwise moment?