Question

The diagram alongside shows a force F acting at point A, such that it produces a moment of force of 20 Nm in clockwise direction. Calculate the magnitude of force F.

Answer 1

Moment of force about O = 20 Nm (clockwise)

⊥ distance (OA) = 0.5 m

Moment of force = F × ⊥ distance

∴ F = \[\dfrac{\text{Moment of force}}{\perp \text{distance}}\]

= \[\dfrac{20\ \text{Nm}}{0.5\ \text{m}}\]

= 40 N