Question

3 Below, someone is trying to balance a plank with stones. The plank has negligible weight. a Calculate the moment of the 4 N force about O. b Calculate the moment of the 6 N force about O. - 2 m * 2 m-* 4 m Р 1 4N 6N

Answer 1

Moment of the 4N force = 16Nm

Moment of the 6N force = 12Nm

Step-by-step explanation:

Find the diagram attached.

Moment of a force is the product of the force and the perpendicular distance from the point of application

For the 4N force

Distance of the force from O is 4m

Moment of the 4N force = 4N * 4m

Moment of the 4N force = 16Nm

For the 6N force

Distance of the force from O is 2m

Moment of the 6N force = 6N * 2m

Moment of the 6N force = 12Nm