1. Solve Prob. 4–42 using Castigliano’s theorem. 2. The cantilevered handle in Prob. 3–84 is made from mild steel. Let Fy = 250 lbf and Fx = Fz = 0. Using Castigliano’s theorem, determine the vertical...

1. Solve Prob. 4–42 using Castigliano’s theorem. 2. The cantilevered handle in Prob. 3–84 is made from mild steel. Let
Fy
= 250 lbf and
Fx
=
Fz
= 0. Using Castigliano’s theorem, determine the vertical deflection (along the
y
axis) at the tip. Repeat the problem with shaft
OC
simplified to a uniform diameter of 1 in for its entire length. What is the percent error from this simplification?