For the cantilever beam and loading shown below, determine the required development length of the bars in the wall: (a) When the bars are straight; (b) When a 90 degree hook is used; (c) When a 180 degree hook is used. Assume: WD. weight included wall f = 5000 psi, fy = 60,000 psi, bars are not coated, K= 0, Y = 1.6, and Y = 1.25 tr r 0 = 0.6 kip/ft, P =17 kip, L=11 ft, b=16 in, h = 26 in, + WD L + L 2.5 in F 2.5 in 6 #7 b 2.5 in Cross section h