Q3. If the bucket and its contents have a total weight of 20 lb, determine the force in the supporting cables DA, DB, and DC. A 4.5 ft B 3 ft 2 15 ft W=2016 2.5 ft C D 3 ft 1.5 ft y

Forces F1 and F2 act on the bracket as shown. Find R. F = 100 N 30 20 F2 = 80 N

Determine the magnitude of the WEIGHT of the box (in Newtons) if it is known that the tension in the AC cable is 3629.75 Newtons. B y -1.21m -1.37m 1.52m D 2.28m 1.02m- X

1] The members of a truss are connected to the gusset plate. If the forces are concurrent at point O, determine the magnitudes of F and T for equilibrium. Take 0-30°. 8KN SkN

% EV The crate has a weight of 550 lb. Determine the force in each supporting cable. 30 个

Q2 Find the force acting in each of the members of the truss shown below. Remember to specify if each member is in tension or compression. 6 ft 6 ft 500 lbs 6 ft 6 ft

If the resultant of the forces shown passes through point A, determine the magnitude of the unknown pulley tension T₂. The pulley is welded to the frame and is therefore not free to rotate. 0² 1.6 m Answer: T₂ = 285 N 0.6 m A 1.9 m 52° T₂ 1310 N 0.50 ml N 310 N 1.05 m 520 N

6 The 141 lb uniform tank is suspended by means of a 6.3-ft-long cable, which is attached to the sides of the tank and passes over the small pulley located at O. If the cable can be attached at either points A and B or C and D, determine which attachment produces the least amount of tension in the cable. What is this tension? 211. D 2 ft

2. The backhoe supports a 7.5 kN weight of soil in the bucket which has a center of gravity at G. Find: 0.64 m 0.25 m ● 0.26 m 0.3 m 1.68 m Force in cylinder ED (indicate if force is in tension or compression) Force in cylinder FI (indicate if force is in tension or compression) OF 0.4 m 0.1 m A -1.44 m- 17.5 kN 0.25 m D B m E 0.22 m 0.45m H O SUSIS Force in ED = Force in FI = KN (Tor C) kN (Tor C)

Find the forces in the three cables AB, AC and AD used to support the 900 lb load.