Every slender rod has a finite radius r. Refer to Table D/4 and derive an expression for

Question:

Every “slender” rod has a finite radius r. Refer to Table D/4 and derive an expression for the percentage error e which results if one neglects the radius r of a homogeneous solid cylindrical rod of length l when calculating its moment of inertia I_zz. Evaluate your expression for the ratios r/l = 0.01, 0.1, and 0.5.