Chapter 4, Problem 10P

The moment of the force F=50i100j70klb about point O is MO=400i+410j300klbft. Determine the coordinates of the point where the line of action of F intersects the xz-plane.

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 coordinate direction angles of the force F applied at the end of the pipe such that the moment of F about point A is zero.

Determine the moment of this force about point B.

The 30N Force (P) is applied perpendicular to the portion BC of the bent bar. Determine the moment of the force (P) about point (B) and about point (A).

The force of magnitude F= 179 lb acts along the edge of the triangular plate. Determine the moment of F about point O. The moment is positive if counterclockwise, negative if clockwise.

The 30N force P is applied perpendicular to the portion BC on the bent bar . Determine The moment of P about point B and about point A.

Use Varignon's method. Determine the moment about point P from the 4 kN force. P 2 m 4 m 30° x 4 kN