Final answer:
The moment of force (MA) around point A can be determined using the equation MA = F x r, where F is the magnitude of the force and r is the distance from point A to the line of action of the force.
Step-by-step explanation:
The moment of force (MA) around point A can be determined by using the equation MA = F x r, where F is the magnitude of the force and r is the distance from point A to the line of action of the force.
First, we need to know the magnitude and direction of the force F. Then, we need to find the perpendicular distance from point A to the line of action of the force. Once we have both values, we can calculate the moment of force MA.
For example, if the magnitude of the force is 10 N and the distance from point A to the line of action of the force is 5 meters, then the moment of force MA = 10 N x 5 m = 50 Nm.