*3-6. The springs AB and BC have a stiffness of 500 N/m and an unstretched length of 6 m. Determine the displacement d of the cord from the wall when a force F = 175 N is applied to the cord.

A(-150, -200) 2/5: A cable stretched between the fixed supports A and B is under a tension T of 900 N. Determine the x and y scalar components of T, first, as a force TA acting on A and second, as a force TB acting on B. Ans. TxA= 749 N, Ty = -499 N TxB = - 749N, Ty = 499N 3 m 2 m is determined that rod AB transmits a 260-N

4-23. If d - 1 m, and e- 30, determine the normal reaction at the smooth supports and the required distance a for the placement of the roller if P - 600 N. Neglect the weight of the bar.

3–59. Determine the tension developed in the three cables required to support the traffic light, which has a mass of 20 kg. Take h= 3.5 m. 6 m 3 m 4 m 4 m 3 m 4 m 6 m 4 m 3 m Prob. 3–59 F-348N Fa-413 N Fan- 174N