Last updated: For 2025 curricula, ensure you are using the "UPD" version – verify with your lecturer that the problem numbering matches the current edition of Hearn’s Mechanics of Materials.

( \theta = \fracT LG J = \frac716.2 \times 180\times10^9 \times 9.20\times10^-6 = 0.000973 \text rad/m )