The total cross-sectional area of the load-bearing calcifiedportion of the two forearm bones (radius and ulna) is approximately2.4 cm2. During a car crash,the forearm is slammed against the dashboard. The arm comes to restfrom an initial speed of 80 km/h in 5.8ms. If the arm has an effective mass of 3.0 kg, what is the compressional stress that the arm withstands during the crash?