Chapter 11, Problem 23P

3-2. The members of a truss are pin connected at joint O. Determine the magnitude of F and its angle 0 for equilibrium. Set F2 = 6 kN. 5 kN 70° F2 30° 7 kN F, Probs. 3–1/2

The traffic light has a mass of 15 kg, and if it is held in the equilibrium position shown by the three tension cables AB, AC, and AD. Find the tension developed in cable AB UAB = BAC UAD 4 m 3.m 6 m 4 m 6 m

Q4/ The jib crane is supported by a pin at C and rod AB. If the load has a mass of 3 Mg with its center of mass located at G, determine the horizontal and vertical components of reaction at the pin C and the force developed in rod AB on the crane when x = 6 m. 4 m A B 3.2 m 0.2 m D

Determine the tension in the cable needed to hold the 760-lb cylinder in equilibrium. Determine the components of reaction at A using scalar notation. Determine the components of reaction moment at A using scalar notation.

If the box shown has a mass of 10 kg, determine the couple moment M needed to maintain equilibrium when θ = 60°. Neglect the mass of the members.

Masses M1 and M2 are held on the frictionless inclined plane by a rigid inextensible bar of length l as shown in diagram find the angle θ under equilibrium condition in terms of M1, M2 and θ1

Determine the tension in each cable necessary for equilibrium of the massless pipe supporting 800 N/m uniform load over a distance of 3 m if the support at A is ball- and-socket. Note that the structure is symmetrical about the x-z plane. X 1.5 m 800 N/m 3 m B 1 m 1.5 m -1.5m1m Z 1.5 m 3 m

3-59. Determine the force in cables AB, AC, CD, CE, an CF needed to support the 500-lb crate. Hint: First analyz the equilibrium of point A, then using the result for AC analyze the equilibrium of point C. 24 ft 24 ft D-10 ft- 7 ft E 7 ft 35° x 120⁰

If the mass of the flowerpot is 65 kg, calculate the tension generated in every cable for equilibrium. Assume x = 1.5 m and z = 2 m. -2 m 3 m B The Tension AD is O 418.2 N O 418.2 KN 4100 N 6700 KN Answer is not available 4300.58 N 560.09 N 1.10 KN