Chapter 11, Problem 24P

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

1. The cord AB has a length of 5 m and is attached to the end B of the spring having a stiffness k = 10 N/m. The other end of the spring is attached to a roller C so that the spring remains horizontal as it stretches. If a 10 N weight is suspended from B, determine the necessary un-stretched length of the spring, so that = 40° for equilibrium. 5 m 5 m 5 m- www k = 10 N/m

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

Determine the unstretched length of spring AC if a force P = 100 Ib causes the angle 0= 52° for equilibrium. Cord AB is 2 ft long. Take k = 35 lb/ft. 2 ft 2 ft www

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

Determine the tension developed in each cable for equilibrium of the 300-lb crate. X 3 ft 2 ft 3 ft 6 ft 4 ft

Cart B , which weighs 75 kN, rolls along a sloping track that forms an angle B with the horizontal. The spring constant is 5 kN/m, and the spring is unstretched when x= 0. Determine the distance xcorresponding to equilibrium for the angle B indicated.Angle β= 60°

The 10 kg chandelier is in equilibrium and is supported by 3 cables attached to the walls. The first cable (F/) is attached to Wall A, the second cable (F2) is attached to Wall B. • Determine the location of the third cable (F3). Which wall is F; attached to? • What is the tension in F, and what direction is F; measured counter-clockwise from the positive x axis? F2 = 60 N Cable 2 46.00 Cable 1 F = 20 N Note the chandelier chain is not the third force you are looking for Chandelier Chain ho Wall A Wall B.