The total cross-sectional area of the load-bearing calcifiedportion of the two forearm bones (radius and ulna) is approximately2.0 cm2. During a carcrash, the forearm is slammed against the dashboard. The arm comesto rest from an initial speed of 80 km/h in 4.1 ms. If the arm has an effective mass of 3.0kg, what is the compressional stress that the arm withstands duringthe crash?
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