6) A 59-kg and a 90-kg skydiver jump from an airplane at a high altitude, both falling in the pike position (head first for a drag coefficient of 0.7). Their cross-sectional areas are 0.2 m (light diver) and 0.22 m (heavy), respectively. The density of air is 1.21 kg/m. What is the difference in their terminal speeds ? Give the value of . Express your answer with at least 3 significant figures