Chapter 4, Problem 1FP

Determine the magnitude of the moment of the 150-N force about point O. Also find the perpendicular distance between the line of action of the force and point O (as in M = Fd).

The trap door is held open by the rope AB. If the tension in the rope is T = 60 lb, determine its moment about the y-axis.

Determine the moment of force F about the door hinge at B. Express the result as a Cartesian vector.

F4-7. Determine the resultant moment produced by the forces about point o. 500 N 25m 00 N

F4-9. Determine the resultant moment produced by the forces about point O. 2m F- 200 N 2 m 30 F- 300 N

Draw the necessary free body diagrams.

Find the moment about point A resulting from the force of the knee on the helmet, as shown. Also, find the force F at the base of the neck needed to resist this moment.

F4-7. Determine the resultant moment produced by the forces about point O. 500 N 300 N 45° 2.5 m -1 m- -2 m- 600 N

1) Determine the moment of the force about point 0. 100N 2m -5m-