Question: 1. A triangular compression wave traveling in a bar with velocity co reflects from a free end (see figure). If the material fractures in

1. A triangular compression wave traveling in a bar with velocity co reflects from a free end (see figure). If the material fractures in tension at a stress 200, determine the location where fracture occurs. L Co -500 12a 2. A rope of length 21 is used in a tug-of-war contest. At a nominal stress of 50 the rope breaks at the middle at t=0s. Find and plot the displacement at the breaking point as a function of time before the wave reaches the first man of either team. Ignore the weight of the rope and assume its behavior is linearly elastic. 21

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