Draw the free body diagram.Picture 33Here, is the vertical component of force, is the horizontal component of force, is the horizontal distance from point A to B, is the vertical distance from point A to B, and is the angle.Step 2 of 5From the figure,Similarly,Step 3 of 5Calculate the horizontal component of force.Here, is the applied force.Substitute, for and for in the formula above.Step 4 of 5Calculate the vertical component of force.Substitute, for and for in the formula above.Step 5 of 5Calculate the moment at point B .Substitute, for , for , for , and for in the equation above.Therefore, the moment at point B is .
