PROBLEM 3.C5 The exact expression is given in Prob. 3.158 for the angle of twist of the solid tapered shaft AB when a torque T is applied as shown. Derive an approximate expression for the angle of twist by replacing the tapered shaft by n cylindrical shafts of equal length and of radius where Using for T, L, G, and c values of your choice, determine the percentage error in the approximate expression when (a) (b) (c) 20, (d)
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