Final answer:
To find the moment of the 500 N force about point A, multiply the force by the perpendicular distance from the point.
Step-by-step explanation:
To find the moment of the 500 N force about point A, we need to multiply the force by the perpendicular distance from the point to the line of action of the force. The moment (torque) is calculated using the equation:
Moment = Force × Distance
If the distance from point A to the line of action of the force is, for example, 2 meters, then the moment would be:
Moment = 500 N × 2 m = 1000 N·m