1. The problem statement, all variables and given/known data A sky diver of mass 81.5 kg jumps from a slow-moving aircraft and reaches a terminal speed of 50.0 m/s. (a) What is the acceleration of the sky diver when her speed is 30.0 m/s? 2. Relevant equations mg = bv where b is the friction constant and v is the terminal velocity 3. The attempt at a solution b = (81.5)(9.8) / 50 b = 15.97 (81.5)(9.8) - (15.97)(30) = remaining force, or 319.6 Newtons 319.6 N / 81.5 = 3.921 but it seems, 3.921 is not correct. I must be missing something big. Any help would be appreciated.