2400 kg 15m Question # 1. A fixed crane has a mass of 100-kg and is used to lift a 2400-kg crate. It is held in place by a pin at A and a rocker at B. The center of gravity of the crane is located at G. Determine the components of the reaction at A. Az = -10933.3N - Ay = 3400N ↑ Az = 10708 N + Ay = 3331 N ↑ Az = 95484 N + Ay = 24525 N ↑ Ax = 0 Ay = 23544N ↑

Q2. Determine the stretch in each spring for equilibrium of the block of mass M. The springs are shown in the equilibrium position Given: M = 2 kg a - 3 m b = 3 m C - 4 m kAB - 30 kAC = 20 kAD - 40 g- 9.81 www D

A puck weighs 9 lb and rests on the center of the frictionless surface of the ramp supported in equilibrium by ropes AC and BC. Determine the normal force the ramp exerts on the puck as well as the tension in each of the two ropes. X g a b A Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value 44.0 in 48.4 in 24.2 in 50.8 in 50.6 in 12.1 in 71.3 in C d Z e f 9 B