Solve each problem using the methods outlined in this chapter.
1. Solve for F1: 30.0F1 = (14.0) (18.0) + (25.0) (17.0)
2. Solve for Fw: (12.0) (15.0) + 45.0Fw = (21.0) (65.0) + (22.0) (32.0)
3. Two workers carry a uniform 15.0-ft plank that weighs 22.0 lb (Figure). A load of blocks weighing 165 lb is located 7.00 ft from the first worker.

What force must each worker exert to hold up the plank andload?

15.0 ft 7.00 ft 165 lb 22.0 lb Fi-?