That is correct.wannawin said:Homework Statement
I'm trying to find the moments about points A,B and D respectively.
Homework Equations
Mx= F * d
The Attempt at a Solution
Correct me if I'm wrong, but on point A the leftmost force produces no moment.
Breakup the 52 kN force into its vertical and horizontal vector components, applied where the arrow of the 52 kN force is is touching the line. Then remember the golden rule: The moment of a force, or component of that force, is equal to the force, or component of that force, times the perpendicular distance from the line of action of the force, or component of that force, to the point about which you are summing moments.
Determining the moment about a given point is a physics concept that involves calculating the rotational effect of a force on an object. It takes into account the magnitude and direction of the force as well as the distance between the force and the point.
The formula for determining the moment about a given point is M = F x d, where M is the moment, F is the force and d is the perpendicular distance between the force and the point. This formula is often represented by the cross product symbol (x).
The moment about a given point and torque are related concepts, but they are not exactly the same. Moment is a general term that describes the rotational effect of a force, while torque specifically refers to the rotational force applied to an object.
Determining the moment about a given point is important in many fields, including engineering, architecture, and physics. It is used to analyze the stability and strength of structures, such as buildings and bridges. It is also used in designing machines and vehicles, such as cars and airplanes.
One common misconception is that only forces acting in a vertical or horizontal direction can create a moment. In reality, any force that has a component that is not aligned with the point of rotation can create a moment. Another misconception is that the magnitude of the force is the only important factor in determining the moment, when in fact, the distance from the force to the point is equally important.