The cantilevered bar is subjected to two constant loads. Force P=20 lbf, F= 10 lbf acts at point A and is in the +x direction. Force F acts at point B and is in the +y direction. The bar is a solid rod with a constant 1/2-in diameter. Determine the following. y -in dia. F B 15 in 7 in P (a) The critical element(s) of the bar. (b) Show the state of stress on a stress element for each critical element.