MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Mechanical Engineering 2.001 Mechanics and Materials I Fall 2006 Problem Set 9 Distributed: Wednesday, November 15, 2006 Due: Wednesday, November 22, 2006 * * Skipping classes is a bad idea. That said, if you will be on an airplane during class on Wednesday, you may drop your pset off in advance at TA office hours, at my office, or at the office of my assistant, sticking it under the door if necessary. Problem 1: Hibbeler 10-6Problem 2: Hibbeler 10-67. A symbolic answer in terms of σYwill suffice; there’s no need to convert to SI units just to give a numerical answer. Problem 3: You’re building a small-scale wooden model of a structure of interest, and you’re in a hurry to get it done quickly. Part of the model needs to be a structural member that has a length L and a square cross-section with side length L/10, and this structural member will be loaded in tension. At the last minute, you realize that you don’t have any pieces of wood that are long enough; your longest pieces have a length of 0.8L.
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