Solve Prob. 4.118 assuming that the 140-lb load is applied at B. Problem 4.118: Two steel pipes ABCD and EBF are welded together at B to form the boom shown. The boom is held by a ball-and-socket joint at D and by two cables EG and ICFH; cable ICFH passes around frictionless pulleys at C and F. For the loading shown, determine the tension in each cable and the reaction at D.