0.9 m 450 N/m B A 1.8 m D E 1.2 m 1.2 m

The asymmetric simple truss is loaded as shown. Determine the reactions at A and D. Neglect the weight of the structure compared with the applied loads. Is the knowledge of the size of the structure necessary?   3.04 L, 3. 60 L   3.40 L, 3. 06 L   4.03 L, 6.03 L   4.30 L, 6.30 L

1. For the loading system shown on the beam below, calculate the reactions at the two supports. 500 lb 500 lb 250 lb 3 ft- 3 ft- -3 ft- -3 ft-

Determine support reaction at B

The light buom AB is and Socket joint at A and Supported by two cables at B. A fou ce P the reaction force at A acts along the boom because it is a tuo face member. Calculate (}the magnitude of the reachion foice at A in KN () Calculate the magnitalde of the tension in Cable BD and 6C in attached 4 vertical wall ba a ball to is applied at B where P- 11i - 8j hN, Note that kN 4m. BA 2

3/5 Three cables are joined at the junction ring C. De- termine the tensions in cables AC and BC caused by the weight of the 30-kg cylinder. 3/6 A block placed under the head of the claw hammer as shown greatly facilitates the extraction of the nail. If a 50-lb pull on the handle is required to pull the nail, calculate the tension T in the nail and the mag- nitude A of the force exerted by the hammer head on the block. The contacting surfaces at A are suffi- ciently rough to prevent slipping. 45 15 50 Ib 30 kg 30 |20 B Problem 3/5 Problem 3/6

The jib crane is designed for a maximum capacity of 14 kN, and its uniform I-beam has a mass of 270 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 4.9 m. On the same set of axes, plot the x- and y- components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work. (a) What is the value of R when x = 2.4 m? (b) What is the value of R when x = 4.5 m? (c) Determine the minimum value of R and the corresponding value of x. (d) For what value of R should the pin at A be designed? 1.6 m Questions: 25° 14 KN -3.5 m (a) If x = 2.4 m, R = (b) If x= 4.5 m, R= (c) The minimum value for R = i (d) The pin should be designed to hold i KN KN kN at x = i kN. m

Show steps  Draw Free Body Diagram

The jib crane is designed for a maximum capacity of  14 kN, and its uniform I-beam has a mass of  270 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x =  0.2 m to x =  4.0 m. On the same set of axes, plot the x- and y-components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work. (You can disregard the plot, I only need a, b, c, and d)

Using the method of sections, determine the magnitude of the forces: a) the reaction force at Ey at point E. b) the internal force in members CD, GF, CF, GH, and CG.