1.An object of weight 20kn is supported from above by two cables inclined at 40 degrees and 70 degrees to the horizontal. Find graphically the tensions in the cables.
2. Find graphically the forces f1 and f2 in the jib crane. the first angle of the triangle are 60degrees, It is at that angle the 2kn force is pulling down on. force f1 is pointing left towards the 90 degree angle. Force f2 is pointing upwards away from the 30 degree angle this is at bottom of triangle.