1. The problem statement, all variables and given/known data A 82kg skydiver can be modeled as a rectangular "box" with dimensions 21cm× 44cm× 1.8m 2. Relevant equations v = sqrt(2mg/(rho * C *A)) 3. The attempt at a solution A = 0.21 m * 0.44 m = 0.0924 m^2 v = sqrt(2 * 82 kg * 9.81 m/s^2 / (1.2 kg/m^2 * 0.0924 m^2 * 0.80)) =135m/s Apparently this is wrong. I have tried many other formulae but I haven't had luck and I have one more attempt remaining. Any ideas?