The approximated triangular plowshare is a 2 x 12 -inch rectangular rod, 

 36 inches deep. 



a = 1 in. = 0.083 ft 



Jl = 1 ft 



A = 0.021 ft 



0) = 189 rad/sec 



a/b = 1/18 = 0.056, K = 2.23 (Reference 46) 



P = (2.23) (2 lb-sec /f t^) (tt) (0. 083 ft)^(l ft)(0.021 ft)^(189 rad/sec)^ 



rms 



hp 



550 ft-lb/sec 



which is negligible, 



I 



2y2~ 



P = 0.2 hp 



rms "^ 



61 



