Solve the following problem:
Compute the torsional stiffness (GJR) of the beam designed in Example 1.
Example 1: Design a box section to be used as a cantilever beam of length L = 2 m subject to a tip load P = 1000 N. Limit the tip deflection δ to 1/300 of the span L of the beam.
Make sure you use enough details to support your answer.