40° 360 N A worker tries to move a rock by applying a 360-N force to a steel bar as shown. (a) Replace that force with an equivalent force-couple system at D. (b) Two workers attempt to move the same rock by applying a vertical force at A and another force at D. Determine 0.4 m 0.35 m 03 m 30 these two forces if they are to be equivalent to the single force of Part a. 24 m

A barge is pulled by two tugboats. The barge is aligned horizontally while the rope of tugboat 1 is inclined with the horizontal 0-degrees upward, and rope of tugboat 2 is inclined with the horizontal 'a'-degrees downward. If the resultant of the forces exerted by the tugboats is a 6,261-lb force directed along the axis of the barge and 0=36 degrees, determine the magnitude of the tension (Ib) in rope 1 if a = 51° Answer in 2-decimal places only if applicable, and don't include units. A

Two bolts at A and B are used to move the trunk of a fallen tree. Replace the forces exerted by the ropes with an equivalent wrench and determine (a) the resultant force , (b) the pitch of the wrench, (c) the point where the axis of the wrench intersects the yz plane.