This discussion focuses on calculating moments about points A, B, and D using the equation Mx = F * d. The participant correctly identifies that the leftmost force at point A produces no moment. They emphasize the importance of breaking down the 52 kN force into its vertical and horizontal components to determine the moments accurately. The discussion highlights the necessity of calculating the perpendicular distances from the line of action of the forces to the points of interest, particularly for the 93 kN force and the components of the 52 kN force.
PREREQUISITESStudents in engineering mechanics, physics enthusiasts, and professionals involved in structural analysis or statics who need to understand moment calculations about specific points in a system.
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.