Chapter 4, Problem 144P

The forces P1=110lb,P2=200lb, and P3=150lb are equivalent to a single force R. Determine (a) the magnitude of R; and (b) the coordinates of the point where the line of action of R crosses the yz-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).

When the three forces are replaced by an equivalent force-couple system with the force at point O, the couple vector CR is directed parallel to the x-axis. Determine F and the resultant force-couple system.

The force F=2i12j+5klb acts along the line AB. Recognizing that the moment of F about point B is zero, determine the x- and z-coordinates of point B.

The wrench is used to tighten a nut on the wheel. Determine the moment of the 120-lb force about the origin O. Express your answer in vector form.

The two forces are applied to the end of the boom OA. Determine the force F so that the resultant of the two forces lies in the yz-plane.

Q4/ Find the value of d of the parallel force system at which the resultant of the two forces acts. 650N 20cm 40cm 600N

Find the magnitude and direction of the resultant force if F1 = 60 N at 45 deg N of W and F2 = 50 N at 60 deg S of E.

Determine the direction of force F in the direction of the vector AB when A = (2,3,6) and B = (6,3,1).