Question

Figure shows two forces acting at points A and B of a rod pivoted at a point O, such that OА = 2 m and OB = 4 m.

The moment of force F₂ about O is:

Options

• 8 N m (clockwise)

• 8 N m (anticlockwise)

• 12 N m (clockwise)

• 12 N m (anticlockwise)

Answer 1

12 N m (clockwise)

Explanation:

Given: F₂ ​= 3N

OB = 4m

Moment = 3 × 4

Moment = 12 N m

∴ The force at BB tends to rotate the rod clockwise.