Ps

Under results and discussion, comment on the modulus of rigidity for the three cases. In terms of percentage error, how results compare to the theoretical values frorix the textbook? What are the possible sources of error? How does the rigidity of the solid tube compare with the rigidity of the hollow tube having the same outer diameter and material? How does the Jvalue of a solid rod compare with the Jvalue of a hollow rod? Discuss the design efficiency using a hollow (tubular) rod rather than a solid rod. Explain why torsion tests are important and what you learned from this experiment. Were the results in line with what you expected?

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